APA (7th ed.) Citation

Gupta, H. (1980). Selected topics in number theory. Abacus Pr.

Chicago Style (17th ed.) Citation

Gupta, Hansraj. Selected Topics in Number Theory. Tunbridge Wells: Abacus Pr, 1980.

MLA (9th ed.) Citation

Gupta, Hansraj. Selected Topics in Number Theory. Abacus Pr, 1980.

Warning: These citations may not always be 100% accurate.