Disgrifiad
Cyhoeddwyd:Began with no. 1 (Dec. 1973).
Disgrifiad o'r Eitem:Each no. also has a distinctive title.
Description based on: No. 4 (July 1982); title from caption.
Disgrifiad Corfforoll:v. : ill. ; 28 cm.
Publication Frequency:Irregular
ISSN:0092-9344
Eitemau Perthynol:Issued also in French: Population reports. Série B, Les dispositifs intra-utérins.