Baker, F. (1981). Helping: Human services for the '80s. C. V. Mosby Co.
Cita Chicago Style (17a ed.)Baker, Frank. Helping: Human Services for the '80s. St. Louis: C. V. Mosby Co, 1981.
Cita MLA (9a ed.)Baker, Frank. Helping: Human Services for the '80s. C. V. Mosby Co, 1981.
Precaución: Estas citas no son 100% exactas.