Blank, U., & Gunn, C. A. (1966). Guidelines for tourism-recreation in Michigan's Upper Peninsula: A report and recommendations. Ann Arbor, MI: [s.n.].
Παραπομπή Chicago StyleBlank, Uel, and Clare A. Gunn. Guidelines for Tourism-recreation in Michigan's Upper Peninsula: A Report and Recommendations. Ann Arbor, MI: [s.n.], 1966.
Παραπομπή MLABlank, Uel, and Clare A. Gunn. Guidelines for Tourism-recreation in Michigan's Upper Peninsula: A Report and Recommendations. Ann Arbor, MI: [s.n.], 1966.
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