Cita APA (7th ed.)

Roeber, E. C., Walz, G. R., & Smith, G. E. (1969). A strategy for guidance: A point of view and its implications. Macmillan.

Cita Chicago (17th ed.)

Roeber, Edward C., Garry Richard Walz, i Glenn Erle Smith. A Strategy for Guidance: A Point of View and Its Implications. [New York]: Macmillan, 1969.

Cita MLA (9th ed.)

Roeber, Edward C., et al. A Strategy for Guidance: A Point of View and Its Implications. Macmillan, 1969.