APA (7th ed.) Zitazioa
Instant programs for youth groups: Friends, parents, dating and sex. Group Books.
Chicago Style (17th ed.) Zitazioa
Instant Programs for Youth Groups: Friends, Parents, Dating and Sex. Colorado: Group Books.
MLA (9th ed.) Zitazioa
Instant Programs for Youth Groups: Friends, Parents, Dating and Sex. Group Books.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.