Herr, E. L., & Cramer, S. H. (1992). Career guidance and counseling through the life span: Systematic approaches (4th ed.). Harper Collins.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHerr, Edwin L., और Stanley H. Cramer. Career Guidance and Counseling Through the Life Span: Systematic Approaches. 4th ed. New York: Harper Collins, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHerr, Edwin L., और Stanley H. Cramer. Career Guidance and Counseling Through the Life Span: Systematic Approaches. 4th ed. Harper Collins, 1992.
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