Gaya APA
Zelnik, Melvin, Kantner, John F., Ford, Kathleen. (1981).
Sex and pregnancy in adolescence .
London:
Sage Publichations .
Gaya Chicago
Zelnik, Melvin, Kantner, John F., Ford, Kathleen.
Sex and pregnancy in adolescence.
London:
Sage Publichations ,
1981.
Text.
Gaya MLA
Zelnik, Melvin, Kantner, John F., Ford, Kathleen.
Sex and pregnancy in adolescence.
London:
Sage Publichations ,
1981.
Text.
Gaya Turabian
Zelnik, Melvin, Kantner, John F., Ford, Kathleen.
Sex and pregnancy in adolescence.
London:
Sage Publichations ,
1981.
Print.