000
00316nam a2200121Ia 4500
100
_a
Wilson, Mercedes Arzu
020
_a
0-442-29515-4
942
_c
BK
245
_a
The ovulation method of birth regulation
260
_a
Van Nostrand Reinhold Company, New York
_c
1980
082
_a
613.943 Wil
300
_a
xxii, 201p
999
_c
21306
_d
21306