TY  - GEN
TI  - Understanding human sexuality
SN  - 0070318026
U1  - 306.7 HYD 
PY  - 1997///
CY  - Boston : McGraw Hill
KW  - Sex
KW  - Sex customs
KW  - Hygiene, sexual
KW  - Sex (psychology)
N1  - Includes bibliographical references and index
ER  -