APA引文

Knopp, K., Bers, L., & Bagemihl, F. (1948). Problem book in the theory of functions (First American edition.). Dover Publications, Inc.

Chicago Style (17th ed.) Citation

Knopp, Konrad, L. Bers, and F. Bagemihl. Problem Book in the Theory of Functions. First American edition. New York: Dover Publications, Inc, 1948.

MLA引文

Knopp, Konrad, et al. Problem Book in the Theory of Functions. First American edition. Dover Publications, Inc, 1948.