Cita APA (7a ed.)

Packard, D. J., & Faulconer, J. E. (1980). Introduction to logic. Van Nostrand Company.

Cita Chicago Style (17a ed.)

Packard, Dennis J., y James E. Faulconer. Introduction to Logic. New York: Van Nostrand Company, 1980.

Cita MLA (8a ed.)

Packard, Dennis J., y James E. Faulconer. Introduction to Logic. Van Nostrand Company, 1980.