Boehm, R. G. (1995). Glencoe world geography: A physical and cultural approach. Glencoe/McGraw-Hill.
Chicago Style aipamenaBoehm, Richard G. Glencoe World Geography: A Physical and Cultural Approach. Glencoe/McGraw-Hill, 1995.
MLA aipamenaBoehm, Richard G. Glencoe World Geography: A Physical and Cultural Approach. Glencoe/McGraw-Hill, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.