Johnson, W. L. (1986). Directory of special programs for minority group members: Career information services, employment skills banks, financial aid sources (4th ed.). Garrett Park, Md.: Garrett Park Press.

Johnson, Willis L. Directory of Special Programs for Minority Group Members: Career Information Services, Employment Skills Banks, Financial Aid Sources. 4th ed. Garrett Park, Md.: Garrett Park Press, 1986.

Johnson, Willis L. Directory of Special Programs for Minority Group Members: Career Information Services, Employment Skills Banks, Financial Aid Sources. 4th ed. Garrett Park, Md.: Garrett Park Press, 1986.