MLA

Desmonts, J., and James Macdonald Co. Blue Book. 1915. https://collections.library.yale.edu/catalog/10841006.

APA, 6th edition

Desmonts, J., & Co, J. M. (1915). Blue book. [Advertisements, Binders' stamps (Binding)--James Macdonald Co.--local--CtY-BR, Periodicals]. https://collections.library.yale.edu/catalog/10841006.