New Strategist Publications, Inc. (2012). Older Americans: A changing market (7th ed.). New Strategist Publications, Inc..
Cita Chicago (17th ed.)New Strategist Publications, Inc. Older Americans: A Changing Market. 7th ed. Ithaca, N.Y.: New Strategist Publications, Inc., 2012.
Cita MLA (9th ed.)New Strategist Publications, Inc. Older Americans: A Changing Market. 7th ed. New Strategist Publications, Inc., 2012.
Atenció: Aquestes cites poden no estar 100% correctes.