APA
Bernard H. W. &. F. D. W., . (1977). Principles of guidance. Thomas Y Crowell Company, New York: .
Chicago
Bernard Harold W & Fullmer Daniel W, . 1977. Principles of guidance. Thomas Y Crowell Company, New York: .
Harvard
Bernard H. W. &. F. D. W., . (1977). Principles of guidance. Thomas Y Crowell Company, New York: .
MLA
Bernard Harold W & Fullmer Daniel W, . Principles of guidance. Thomas Y Crowell Company, New York: . 1977.