Cita APA (7th ed.)
Eriksen, K. (1977). Human services today. Reston Pub. Co..
Cita Chicago (17th ed.)
Eriksen, Karin. Human Services Today. Reston, Va.: Reston Pub. Co., 1977.
Cita MLA (9th ed.)
Eriksen, Karin. Human Services Today. Reston Pub. Co., 1977.
Atenció: Aquestes cites poden no estar 100% correctes.