Technical Services Units:
| Prefix | Definition |
| BASK | Baskette Collection (RBX) |
| CASS | Sound cassette |
| CASSS. | Sound cassette, S-Collection |
| CASSSE. | Sound cassette, S-Coll., easy |
| CDISC | Compact disc |
| CDROM | CD-ROM |
| CDROMDOC. | CD-ROM gov't document |
| CHART | Chart |
| CURR. | Curriculum Collection |
| DISC | Phonodisc |
| DOC. | Government document |
| DOWNS | Downs Collection (RBX) |
| DVD | Digital video disc (all versions) |
| EC | Ethnic Collection |
| F. | Folio (42.1 cm. and above) |
| F.S. | Folio, S-Collection |
| FDSK | Floppy disk |
| FDSKDOC. | Floppy disk, gov't doc. |
| FILM | Microfilm |
| FILMS. | Microfilm, S-Collection |
| FLCD | Flashcard |
| FLSTRP | Filmstrip |
| FLSTRPS. | Filmstrip, S-Collection |
| FLSTRPSB. | Filmstrip, S-Coll., biography |
| FLSTRPSE. | Filmstrip, S-Coll., easy |
| GAME | Game |
| GAMES. | Game, S-Collection |
| GAMESB. | Game, S-Coll., biography |
| GAMESE. | Game, S-Coll., easy |
| HECHT | Hecht Collection (RBX) |
| HECHTQ. | Hecht Coll., quarto |
| JAFFE | Jaffe Collection (RBX) |
| KIT | Kit |
| KITS. | Kit, S-Collection |
| KITSB. | Kit, S-Coll., biography |
| KITSE. | Kit, S-Coll., easy |
| KPLN | Kaplan Collection (RBX) |
| LARSEN | Larsen Collection (RBX) |
| LARSENQ. | Larsen Coll., quarto |
| LARSENTAPE | Larsen Coll., audiotape |
| MAYER | Mayer Collection (RBX) |
| MAYERQ. | Mayer Coll., quarto |
| MEINE | Meine Collection (RBX) |
| MEINEF. | Meine Coll., folio |
| MEINEFDSK | Meine Coll., floppy disk |
| MEINEFILMQ. | Meine Coll., microfilm of a quarto book |
| MEINEQ. | Meine Coll., quarto |
| MERWIN | Merwin Collection (RBX) |
| MERWINF. | Merwin Coll., folio |
| MERWINQ. | Merwin Coll., quarto |
| MFICHE | Microfiche |
| MFICHEDOC. | Mircofiche, gov't document |
| MPFILM | Motion picture film |
| MTLY | Motley Collection (RBX) |
| MTLYMFICHE | Motley Coll., microfiche |
| MTLYQ. | Motley Coll., quarto |
| NICKELL | Nickell Collection (RBX) |
| NICKELLQ. | Nickell Coll., quarto |
| NICKELLF. | Nickell Coll., folio |
| PICT | Picture |
| PICTQ. | Picture, quarto |
| PICTF.S. | Picture, folio, S-Collection |
| Q. | Quarto (28.1 cm. up to 42 cm.) |
| Q.S. | Quarto, S-Collection |
| Q.SB. | Quarto, S-Coll., biography |
| Q.SE. | Quarto, S-Coll., easy |
| REALIA | Realia |
| ROLL | Music rolls |
| S. | S-Collection |
| SB. | S-Collection, biography |
| SE. | S-Collection, easy |
| SLIDE | Slide |
| SNDBRG | Sandburg Collection (RBX) |
| SNDBRGF. | Sandburg Coll., folio |
| SNDBRGFILM | Sandburg Coll., microfilm |
| SNDBRGQ. | Sandburg Coll., quarto |
| SNDBRGVIDEOREC | Sandburg Coll., videorecording |
| TAPE | Reel-to-reel audiotape |
| TEXT. | Textbook |
| TRNSPR | Transparency |
| UHSL. | University High School Library |
| UHSLFDSK. | Uni High, floppy disk |
| UHSLQ. | Uni High, quarto |
| UHSLT. | Uni High, sound cassette |
| VIDREC | Videorecording |
| VIDRECDOC. | Videorecording, gov't document |