author = { Wolfers, David },

title = { Post-partum intra-uterine contraception in Singapore },

publisher = {Excerpta Medica},

keywords = { Birth control , Singapore , Intrauterine contraceptives },

year = {1970},

abstract = {Includes bibliographical references},

booktitle = {Excerpta medica monograph},

address = { Amsterdam },

url = { http://slubdd.de/katalog?TN_libero_mab2 }