APA

Heidenheimer A. J., Kommers D. P., . (1975). The governments of Germany. New York: Crowell.

Chicago

Heidenheimer Arnold J, Kommers Donald P, . 1975. The governments of Germany. New York: Crowell.

Harvard

Heidenheimer A. J., Kommers D. P., . (1975). The governments of Germany. New York: Crowell.

MLA

Heidenheimer Arnold J, Kommers Donald P, . The governments of Germany. New York: Crowell. 1975.