APA

Steinberg S., . (1971). Understanding American Government and politics. New York: Keystone Education Press.

Chicago

Steinberg Samuel, . 1971. Understanding American Government and politics. New York: Keystone Education Press.

Harvard

Steinberg S., . (1971). Understanding American Government and politics. New York: Keystone Education Press.

MLA

Steinberg Samuel, . Understanding American Government and politics. New York: Keystone Education Press. 1971.