APA

Gunther Gerald,, . (1991). Constitutional law. New York: The Foundation Press Inc.

Chicago

Gunther Gerald,, . 1991. Constitutional law. New York: The Foundation Press Inc.

Harvard

Gunther Gerald,, . (1991). Constitutional law. New York: The Foundation Press Inc.

MLA

Gunther Gerald,, . Constitutional law. New York: The Foundation Press Inc. 1991.