Gaya APA

Bibby,Cyril, . (1957). Sex Education : A Guide for Parents,Teachers and Youth Leaders (2nd.ed). New York: Macmillan & Co LTD.

Gaya MLA

Bibby,Cyril, . "Sex Education : A Guide for Parents,Teachers and Youth Leaders". 2nd.ed New York: Macmillan & Co LTD, 1957. Text.