APA

Hoppock R., . (1976). Occupational information: where to get it and how to use it in counseling and in teaching. New York: McGraw-Hill.

Chicago

Hoppock Robert, . 1976. Occupational information: where to get it and how to use it in counseling and in teaching. New York: McGraw-Hill.

Harvard

Hoppock R., . (1976). Occupational information: where to get it and how to use it in counseling and in teaching. New York: McGraw-Hill.

MLA

Hoppock Robert, . Occupational information: where to get it and how to use it in counseling and in teaching. New York: McGraw-Hill. 1976.