Παραπομπή σε μορφή APA (7η εκδ.)

Herr, E. L., & Cramer, S. H. j. a. (1972). Vocational guidance and career development in the schools: Toward a system approach. Houghton Mifflin.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Herr, Edwin L., και Stanley H. joint auth Cramer. Vocational Guidance and Career Development in the Schools: Toward a System Approach. Boston: Houghton Mifflin, 1972.

Παραπομπή σε μορφή MLA (9th εκδ.)

Herr, Edwin L., και Stanley H. joint auth Cramer. Vocational Guidance and Career Development in the Schools: Toward a System Approach. Houghton Mifflin, 1972.