Cita APA (7a ed.)
Carkhuff, R. R. (1974). How to help yourself: The art of program development. Human Resource Development Press.
Cita Chicago Style (17a ed.)
Carkhuff, Robert R. How to Help Yourself: The Art of Program Development. Amherst, Massachusetts: Human Resource Development Press, 1974.
Cita MLA (9a ed.)
Carkhuff, Robert R. How to Help Yourself: The Art of Program Development. Human Resource Development Press, 1974.
Precaución: Estas citas no son 100% exactas.