Cita APA (7th ed.)

Wallis, J. H. (1973). Personal counselling: An introduction to relationship therapy. Allen and Unwin.

Cita Chicago (17th ed.)

Wallis, J. H. Personal Counselling: An Introduction to Relationship Therapy. London: Allen and Unwin, 1973.

Cita MLA (8th ed.)

Wallis, J. H. Personal Counselling: An Introduction to Relationship Therapy. Allen and Unwin, 1973.