Gordon, Gill, author
McMillan, 1994
Buku Referensi
Gordon, Gill, author
International Planned Parenthood Federation , 1988
Buku Teks
edited by Florence Haselkorn
Council on Social Work Education, 1971
Buku Teks
edited by Katherine A. Kendall
Council on Social Work Education, 1971
Buku Teks
edited by James F. Phillips, John A. Ross
Clarendon Press, 1992
Buku Teks