Dyfyniad APA

Niven, I. M., Zuckerman, H. S., & Montgomery, H. L. (1991). An introduction to the theory of numbers (Fifth edition.). Wiley.

Dyfyniad Arddull Chicago

Niven, Ivan Morton, Herbert S. Zuckerman, and Hugh L. Montgomery. An Introduction to the Theory of Numbers. Fifth edition. New York; New Delhi: Wiley, 1991.

Dyfyniad MLA

Niven, Ivan Morton, et al. An Introduction to the Theory of Numbers. Fifth edition. Wiley, 1991.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.