APA (7e ed.) Bronvermelding

Exner, R. M., & Rosskopf, M. F. (1959). Logic in elementary mathematics. McGraw-Hill Book Company, Inc.

Chicago (17e ed.) Bronvermelding

Exner, Robert M., en Myron F. Rosskopf. Logic in Elementary Mathematics. New York: McGraw-Hill Book Company, Inc, 1959.

MLA (9e ed.) Bronvermelding

Exner, Robert M., en Myron F. Rosskopf. Logic in Elementary Mathematics. McGraw-Hill Book Company, Inc, 1959.