Trewartha, G. T. (1968). An introduction to climate. McGraw-Hill.
Chicago Style (17th ed.) ZitazioaTrewartha, Glenn Thomas. An Introduction to Climate. New York: McGraw-Hill, 1968.
MLA (9th ed.) ZitazioaTrewartha, Glenn Thomas. An Introduction to Climate. McGraw-Hill, 1968.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.