APA

Niven I., Zuckerman H. S. & Zuckerman H. S. (1980). An introduction to the theory of numbers. New York [u.a.]: Wiley.

Chicago

Niven Ivan, Zuckerman Herbert S and Zuckerman Herbert Samuel. 1980. An introduction to the theory of numbers. New York [u.a.]: Wiley.

Harvard

Niven I., Zuckerman H. S. and Zuckerman H. S. (1980). An introduction to the theory of numbers. New York [u.a.]: Wiley.

MLA

Niven Ivan, Zuckerman Herbert S and Zuckerman Herbert Samuel. An introduction to the theory of numbers. New York [u.a.]: Wiley. 1980.