APA-Zitierstil (7. Ausg.)

Powell, T. J., & Powell, T. J. (1987). Self-help organizations and professional practice. National Assoc. of Social Workers.

Chicago-Zitierstil (17. Ausg.)

Powell, Timothy J., und Thomas J. Powell. Self-help Organizations and Professional Practice. Silver Spring, Md: National Assoc. of Social Workers, 1987.

MLA-Zitierstil (9. Ausg.)

Powell, Timothy J., und Thomas J. Powell. Self-help Organizations and Professional Practice. National Assoc. of Social Workers, 1987.