APA (7th ed.) Citation
Knopp, K., & Bagemihl, F. (1947). Theory of functions. Dover publications.
Chicago Style (17th ed.) Citation
Knopp, Konrad, and Frederick Bagemihl. Theory of Functions. New York: Dover publications, 1947.
MLA (9th ed.) Citation
Knopp, Konrad, and Frederick Bagemihl. Theory of Functions. Dover publications, 1947.
Warning: These citations may not always be 100% accurate.