Tohutoro APA (7th ed.)
Koeper, F. (1968). Illinois Architecture: From territorial times to the present. A selective guide. Univ. of Chicago Pr.
Tohutoru Kātū Chicago (17th ed.)
Koeper, Frederick. Illinois Architecture: From Territorial Times to the Present. A Selective Guide. Chicago, London: Univ. of Chicago Pr, 1968.
Tohutoro MLA (9th ed.)
Koeper, Frederick. Illinois Architecture: From Territorial Times to the Present. A Selective Guide. Univ. of Chicago Pr, 1968.
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