APA (7th ed.) Citation

Longley, P. (1981). Contemporary logic. University Press of America.

Chicago Style (17th ed.) Citation

Longley, Peter. Contemporary Logic. Washington, DC: University Press of America, 1981.

MLA (9th ed.) Citation

Longley, Peter. Contemporary Logic. University Press of America, 1981.

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