Columbia subject headings:
Contraception--Australia--Melbourne (Vic.)
Premarital sex--Australia--Melbourne (Vic.)
Harvard subject headings:
Contraception--Australia--Melbourne (Vic.)
Contraception--Australia--Melbourne (Vic.)--Public opinion.
Premarital sex--Australia--Melbourne (Vic.)
Premarital sex--Australia--Melbourne (Vic.)--Public opinion.
Princeton subject headings:
Contraception--Australia--Melbourne (Vic.).
Premarital sex--Australia--Melbourne (Vic.).
Youth--Australia--Sexual behavior.