Wooldridge, S. W. (1956). The Geographer as scientist: Essays on the scope and nature of geography. Nelson.
Ondo kopiatu da
Kopiatzeak huts egin du
Chicago Style (17th ed.) Zitazioa
Wooldridge, Sidney William. The Geographer as Scientist: Essays on the Scope and Nature of Geography. London [usw.]: Nelson, 1956.
Ondo kopiatu da
Kopiatzeak huts egin du
MLA (9th ed.) Zitazioa
Wooldridge, Sidney William. The Geographer as Scientist: Essays on the Scope and Nature of Geography. Nelson, 1956.
Ondo kopiatu da
Kopiatzeak huts egin du
Kontuz: berrikusi erreferentzia hauek erabili aurretik.