APA
Conference of Latin American Geographers, . (1986). Year Book 1986. Indiana: Ball State University.
Chicago
Conference of Latin American Geographers, . 1986. Year Book 1986. Indiana: Ball State University.
Harvard
Conference of Latin American Geographers, . (1986). Year Book 1986. Indiana: Ball State University.
MLA
Conference of Latin American Geographers, . Year Book 1986. Indiana: Ball State University. 1986.
