APA (7th ed.) Citation

Keller, A. I. (1920). A series of American monographs. H. C. Perleberg.

Chicago Style (17th ed.) Citation

Keller, Arthur Ignatius. A Series of American Monographs. [New York]: H. C. Perleberg, 1920.

MLA (9th ed.) Citation

Keller, Arthur Ignatius. A Series of American Monographs. H. C. Perleberg, 1920.