| University of Chicago | Contact institution for more information. | Microfilm service copy | | <1951:1:2-9:29> | Note: AN2 95. Regenstein Library, Microfilm Area.
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| Chicago Public Library | Contact institution for more information. | Microfilm service copy | | <1951:1:2-9:29> | Note: In Business, Science and Technology.
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| University of Illinois at Urbana-Champaign | Contact institution for more information. | Microfilm service copy | | <1951:1:2-9:29> | Note: Please consult staff in the History, Philosophy, and Newspaper Library to request material.
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