APA
Conference of Latin American Geographers, . (1987). Year Book 1987. Alabama: Auburn University.
Chicago
Conference of Latin American Geographers, . 1987. Year Book 1987. Alabama: Auburn University.
Harvard
Conference of Latin American Geographers, . (1987). Year Book 1987. Alabama: Auburn University.
MLA
Conference of Latin American Geographers, . Year Book 1987. Alabama: Auburn University. 1987.
