APA

Manicas P. T., Kruger A. N., . (1968). Essentials of logic. New York: American Book Company.

Chicago

Manicas Peter T, Kruger Arthur N, . 1968. Essentials of logic. New York: American Book Company.

Harvard

Manicas P. T., Kruger A. N., . (1968). Essentials of logic. New York: American Book Company.

MLA

Manicas Peter T, Kruger Arthur N, . Essentials of logic. New York: American Book Company. 1968.