Cita APA (7th ed.)

Vondracek, F., Ford, D., & Porfeli, E. (2014). A Living Systems Theory of Vocational Behavior and Development. Brill.

Cita Chicago (17th ed.)

Vondracek, Fred, Donald Ford, i Erik Porfeli. A Living Systems Theory of Vocational Behavior and Development. Brill, 2014.

Cita MLA (8th ed.)

Vondracek, Fred, et al. A Living Systems Theory of Vocational Behavior and Development. Brill, 2014.