APA (7th ed.) Citation

Knopp, K., & Bagemihl, F. (1945). Theory of functions (1st American ed.). Dover Publications.

Chicago Style (17th ed.) Citation

Knopp, Konrad, and Frederick Bagemihl. Theory of Functions. 1st American ed. New York: Dover Publications, 1945.

MLA (9th ed.) Citation

Knopp, Konrad, and Frederick Bagemihl. Theory of Functions. 1st American ed. Dover Publications, 1945.

Warning: These citations may not always be 100% accurate.