Gaya APA
Mifflin, Houghton. (1987).
Health .
USA:
Houghton Mifflin Company.
Gaya Chicago
Mifflin, Houghton.
Health.
USA:
Houghton Mifflin Company,
1987.
Text.
Gaya MLA
Mifflin, Houghton.
Health.
USA:
Houghton Mifflin Company,
1987.
Text.
Gaya Turabian
Mifflin, Houghton.
Health.
USA:
Houghton Mifflin Company,
1987.
Print.