Gaya APA
Harbrace College Handbook Eleventh Edition. (1990).
United States:
Harcourt Brace Jovanovich, Inc.
Gaya Chicago
Harbrace College Handbook Eleventh Edition.
eleventh.
United States:
Harcourt Brace Jovanovich, Inc,
1990.
Buku.
Gaya MLA
Harbrace College Handbook Eleventh Edition.
eleventh.
United States:
Harcourt Brace Jovanovich, Inc,
1990.
Buku.
Gaya Turabian
Harbrace College Handbook Eleventh Edition.
United States:
Harcourt Brace Jovanovich, Inc,
1990.
Buku.