APA (7th ed.) Citation

Clark, R., & Welsh, P. (1962). Introduction to logic. Van Nostrand.

Chicago Style (17th ed.) Citation

Clark, Romane, and Paul Welsh. Introduction to Logic. Princeton, N.J: Van Nostrand, 1962.

MLA (9th ed.) Citation

Clark, Romane, and Paul Welsh. Introduction to Logic. Van Nostrand, 1962.