. . . . "A research bibliography of policy on quality of human population: ethnic, intellectual, racial restrictions, marriage laws including medical and health requirements, laws on sterilization, and education as they relate to general characteristics of the population"@en . . . . . . . "A research bibliography of policy on quality of human population ethnic, intellectual, racial restrictions, marriage laws including medical and health requirements, laws on sterilization, and education as they relate to general characteristics of the population" . "A research bibliography of policy on quality of human population ethnic, intellectual, racial restrictions, marriage laws including medical and health requirements, laws on sterilization, and education as they relate to general characteristics of the population"@en . . . "A research bibliography of policy on quality of human population : ethnic, intellectual, racial restrictions, marriage laws including medical and health requirements, laws on sterilization and education as they relate to general characteristics of the population" . . . "A research bibliography of policy on quality of human population : ethnic, intellectual, racial restrictions, marriage laws including medical and health requirements, laws on sterilization, and education as they relate to general characteristics of the population"@en . . "Bibliography" . "Bibliography"@en . "A research bibliography of policy on quality of human population" . . . . . . .