Collection of postcards depicting the Idlewild, Michigan resort community [graphic].
MLA
Collection of Postcards Depicting the Idlewild, Michigan Resort Community [Graphic]. 0AD. https://collections.library.yale.edu/catalog/17366454.
APA, 6th edition
Collection of postcards depicting the Idlewild, Michigan resort community [graphic]. (0 C.E.). [Photographic postcards]. https://collections.library.yale.edu/catalog/17366454.