Cita APA (7a ed.)

Heap, K. (1985). The practice of social work with groups: A systematic approach. National Institute social services library.

Cita Chicago Style (17a ed.)

Heap, Ken. "The Practice of Social Work with Groups: A Systematic Approach." National Institute Social Services Library 1985.

Cita MLA (8a ed.)

Heap, Ken. "The Practice of Social Work with Groups: A Systematic Approach." National Institute Social Services Library, 1985.