Haggett, P. (1975). Geography: A modern synthesis (2d ed.). Harper & Row.
Chicago Style aipamenaHaggett, Peter. Geography: A Modern Synthesis. 2d ed. New York: Harper & Row, 1975.
MLA aipamenaHaggett, Peter. Geography: A Modern Synthesis. 2d ed. Harper & Row, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.