Cliquet From incidental to planned parenthood results of the second national fertility survey in Belgium Cliquet; R L; Schoenmaeckers R - Leiden Matinus Nijhoff Social Sciences Divisions1976 1976 - xi,145p. cm. Standard No.: 139,262 Source: Textual Subjects--Topical Terms: SOCIOLOGY Dewey Class. No.: Y:52:5(L).5961:u, L6