APA

McConnell G., . (1967). The modern Presidency. New York: St. Martin's Press.

Chicago

McConnell Grant, . 1967. The modern Presidency. New York: St. Martin's Press.

Harvard

McConnell G., . (1967). The modern Presidency. New York: St. Martin's Press.

MLA

McConnell Grant, . The modern Presidency. New York: St. Martin's Press. 1967.