Cita APA (7th ed.)

Goldman, A. E., & McDonald, S. S. (1987). The group depth interview: Principles and practice. Prentice-Hall.

Cita Chicago (17th ed.)

Goldman, Alfred E., i Susan Schwartz McDonald. The Group Depth Interview: Principles and Practice. Englewood Cliffs, NJ: Prentice-Hall, 1987.

Cita MLA (9th ed.)

Goldman, Alfred E., i Susan Schwartz McDonald. The Group Depth Interview: Principles and Practice. Prentice-Hall, 1987.