Cruz, G. A., Calugan, M., Schneider, H., & Vorlaufer, K. (1997). Employment and housing: Central aspects of urbanization in secondary cities in cross-cultural perspective. Avebury.
Chicago-referens (17:e uppl.)Cruz, Gladys A., Mildred Calugan, Helmut Schneider, och Karl Vorlaufer. Employment and Housing: Central Aspects of Urbanization in Secondary Cities in Cross-cultural Perspective. Aldershot, Ontario: Avebury, 1997.
MLA-referens (9:e uppl.)Cruz, Gladys A., et al. Employment and Housing: Central Aspects of Urbanization in Secondary Cities in Cross-cultural Perspective. Avebury, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.