Gaya APA
Currents: Skillsbook. (1986).
Atlanta:
Houghton Mifflin Company.
Gaya Chicago
Currents: Skillsbook.
.
Atlanta:
Houghton Mifflin Company,
1986.
.
Gaya MLA
Currents: Skillsbook.
.
Atlanta:
Houghton Mifflin Company,
1986.
.
Gaya Turabian
Currents: Skillsbook.
Atlanta:
Houghton Mifflin Company,
1986.
.