APA

Coffey P., . (1938). The science of logic. New York: P. Smith.

Chicago

Coffey Peter, . 1938. The science of logic. New York: P. Smith.

Harvard

Coffey P., . (1938). The science of logic. New York: P. Smith.

MLA

Coffey Peter, . The science of logic. New York: P. Smith. 1938.