該当件数:2件
Levels and trends of contraceptive use as assessed in 1988 / Department of International Economic and Social Affairs
New York : United Nations , 1989. - (Population studies ; no. 110)
図書
Family planning / P.F. Selman
London ; New York : Chapman and Hall , 1988. - (Reviews of United Kingdom statistical sources / edited by W.F. Maunder ; v. 25)