APA

Von Damm H., Reagan R., . (1980). Sincerely, Ronald Reagan. New York: Berkley Book.

Chicago

Von Damm Helene, Reagan Ronald, . 1980. Sincerely, Ronald Reagan. New York: Berkley Book.

Harvard

Von Damm H., Reagan R., . (1980). Sincerely, Ronald Reagan. New York: Berkley Book.

MLA

Von Damm Helene, Reagan Ronald, . Sincerely, Ronald Reagan. New York: Berkley Book. 1980.