Herr, E. L., & Cramer, S. H. j. a. (1972). Vocational guidance and career development in the schools: Toward a system approach. Houghton Mifflin.
Citace podle Chicago (17th ed.)Herr, Edwin L., a Stanley H. joint auth Cramer. Vocational Guidance and Career Development in the Schools: Toward a System Approach. Boston: Houghton Mifflin, 1972.
Citace podle MLA (9th ed.)Herr, Edwin L., a Stanley H. joint auth Cramer. Vocational Guidance and Career Development in the Schools: Toward a System Approach. Houghton Mifflin, 1972.
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