Herr, E. L., & Cramer, S. H. j. a. (1972). Vocational guidance and career development in the schools: Toward a system approach. Houghton Mifflin.
芝加哥风格引文Herr, Edwin L., 与 Stanley H. joint auth Cramer. Vocational Guidance and Career Development in the Schools: Toward a System Approach. Boston: Houghton Mifflin, 1972.
MLA引文Herr, Edwin L., 与 Stanley H. joint auth Cramer. Vocational Guidance and Career Development in the Schools: Toward a System Approach. Houghton Mifflin, 1972.
警告：这些引文格式不一定是100％准确.