APA

International Convocation on the Requirements of Peace, Reed E. & Center for the study of Democratic Institutions. (1965). Peace on earth = Pacem in terris. New York: Pocket Books.

Chicago

International Convocation on the Requirements of Peace, Reed Edward and Center for the study of Democratic Institutions. 1965. Peace on earth = Pacem in terris. New York: Pocket Books.

Harvard

International Convocation on the Requirements of Peace, Reed E. and Center for the study of Democratic Institutions. (1965). Peace on earth = Pacem in terris. New York: Pocket Books.

MLA

International Convocation on the Requirements of Peace, Reed Edward and Center for the study of Democratic Institutions. Peace on earth = Pacem in terris. New York: Pocket Books. 1965.