Gaya APA

Montgomery, I, N, H, S, Z, H, L. (1991). An introduction to the theory of numbers (Fifth edition). New York: John Wiley & Sons, Inc.

Gaya MLA

Montgomery, Ivan, Niven,, Herbet, S., Zuckerman,, Hugh, L.. "An introduction to the theory of numbers". Fifth edition New York: John Wiley & Sons, Inc, 1991. Electronic Resource.