APA aipamena

Knowlton, D. C., & Harden, M. (1936). Since we became a nation. American Book Company.

Chicago Style aipamena

Knowlton, Daniel C., and Mary Harden. Since We Became a Nation. New York: American Book Company, 1936.

MLA aipamena

Knowlton, Daniel C., and Mary Harden. Since We Became a Nation. American Book Company, 1936.