Cita APA

Hollingworth, H. L., & Hollingworth, L. (1916). Vocational psychology: Its problems and methods. D. Appleton and Co.

Citación estilo Chicago

Hollingworth, Harry Levi, and Leta Hollingworth. Vocational Psychology: Its Problems and Methods. New York [etc.]: D. Appleton and Co, 1916.

Cita MLA

Hollingworth, Harry Levi, and Leta Hollingworth. Vocational Psychology: Its Problems and Methods. D. Appleton and Co, 1916.