Cita APA (7th ed.)
Schulz, J. H. (1976). The economics of aging. Wadsworth Pub. Co..
Cita Chicago (17th ed.)
Schulz, James H. The Economics of Aging. Belmont, Calif.: Wadsworth Pub. Co., 1976.
Cita MLA (9th ed.)
Schulz, James H. The Economics of Aging. Wadsworth Pub. Co., 1976.
Atenció: Aquestes cites poden no estar 100% correctes.