APA (7e ed.) Bronvermelding

University, U. c. S. L. (1969). Cadet Col. John Martel, a member of the Parks Guard, May 11, 1969.

Chicago (17e ed.) Bronvermelding

University, Unknown creator; St. Louis. Cadet Col. John Martel, a Member of the Parks Guard, May 11, 1969. 1969.

MLA (8e ed.) Bronvermelding

University, Unknown creator; St. Louis. Cadet Col. John Martel, a Member of the Parks Guard, May 11, 1969. 1969.