Gaya APA
Hoppock, Robert. (1976).
Occupational Information (4).
New York:
McGraw-Hill Book Company.
Gaya Chicago
Hoppock, Robert.
Occupational Information .
4
New York:
McGraw-Hill Book Company,
1976.
TANDON.
Gaya MLA
Hoppock, Robert.
Occupational Information .
4
New York:
McGraw-Hill Book Company,
1976.
TANDON.
Gaya Turabian
Hoppock, Robert.
Occupational Information .
4
New York:
McGraw-Hill Book Company,
1976.
TANDON.