APA (7e ed.) Bronvermelding

Mann, J. A. (1980). Secrets of life extension: A practical guide for the use of life-extension therapies. Harbor Pub. ; distributed by G. P. Putnam's Sons.

Chicago (17e ed.) Bronvermelding

Mann, John A. Secrets of Life Extension: A Practical Guide for the Use of Life-extension Therapies. San Francisco : [New York]: Harbor Pub. ; distributed by G. P. Putnam's Sons, 1980.

MLA (8e ed.) Bronvermelding

Mann, John A. Secrets of Life Extension: A Practical Guide for the Use of Life-extension Therapies. Harbor Pub. ; distributed by G. P. Putnam's Sons, 1980.