1
2
Publicado: 1982
Superior document: Population Reprints / Population Research Laboratory, Department of Sociology, University of Alberta 62
3
Publicado: 1977
Superior document: Population Reprints / Population Research Laboratory, Department of Sociology, University of Alberta 27
4
Publicado: 1978
Superior document: Population Reprints / Population Research Laboratory, Department of Sociology, University of Alberta 34