Citazione Stile APA (7a Edizione)

Wrenn, C. G. (1962). The counselor in a changing world. American Personnel and Guidance Association.

Citazione stile Chigago Style (17a edizione)

Wrenn, Charles Gilbert. The Counselor in a Changing World. Washington: American Personnel and Guidance Association, 1962.

Citatione MLA (9a ed.)

Wrenn, Charles Gilbert. The Counselor in a Changing World. American Personnel and Guidance Association, 1962.