Παραπομπή APA

Baum, R. (1975). Logic. Holt, Rinehart and Winston, Inc.

Παραπομπή Chicago Style

Baum, Robert. Logic. New York: Holt, Rinehart and Winston, Inc, 1975.

Παραπομπή MLA

Baum, Robert. Logic. Holt, Rinehart and Winston, Inc, 1975.