Cita APA

Humpreys, J. A. n. 1., & Traxler, A. E. 1. (1954). Guidance services. Chicago, III.: Science Research Associates.

Citación estilo Chicago

Humpreys, Joseph Anthony n. 1894, y Arthur Edwin 1900-1975 Traxler. Guidance Services. Chicago, III.: Science Research Associates, 1954.

Cita MLA

Humpreys, Joseph Anthony n. 1894, y Arthur Edwin 1900-1975 Traxler. Guidance Services. Chicago, III.: Science Research Associates, 1954.