Gilbert, N., & Specht, H. (1981). Handbook of the social services. Prentice-Hall.
Cita Chicago (17th ed.)Gilbert, Neil, i Harry Specht. Handbook of the Social Services. New Jersey: Prentice-Hall, 1981.
Cita MLA (9th ed.)Gilbert, Neil, i Harry Specht. Handbook of the Social Services. Prentice-Hall, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.