"Families." . . "Eugenics society." . . "Eugenics Society. (13 : 1976 : London)" . . . "Huwelijk." . . "Gezin." . . "Familiesociologi" . . "Marriage Congresses." . . "Mariage Congrès." . . . . "Verenigd Koninkrijk van Groot-Brittannië en Noord-Ierland." . . "Annual symposium of the Eugenics Society (13 : 1976 : London)" . . . "Equality." . . "Family Congresses." . . . . . . . . . . . . . "Conference papers and proceedings" . . "Conference papers and proceedings"@en . . . . "Equalities and inequalities in family life proceedings of the thirteenth annual symposium of the Eugenics Society, London 1976"@en . "Equalities and inequalities in family life : proceedings of the Thirteenth Annual Symposium of the Eugenics Society, London 1976" . . . . . . . . . . . . "Congressen (vorm)" . . . . . "Equalities and inequalities in family life : proceedings of the thirteenth annual symposium of the Eugenics Society, London 1976" . . . "Famille Congrès." . . "Familles Congrès." . .