Trewartha, G. T., & Horn, L. H. (1980). An introduction to climate (5th ed.). McGraw-Hill.
Cita Chicago (17th ed.)Trewartha, Glenn Thomas, i Lyle H. Horn. An Introduction to Climate. 5th ed. New York: McGraw-Hill, 1980.
Cita MLA (9th ed.)Trewartha, Glenn Thomas, i Lyle H. Horn. An Introduction to Climate. 5th ed. McGraw-Hill, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.