APA (7th ed.) Zitazioa
Ragan, R. M., & Wolman, M. G. (1983). Study of land transformation processes from space and ground observations. Pergamon Pr.
Chicago Style (17th ed.) Zitazioa
Ragan, R. M., eta M. Gordon Wolman. Study of Land Transformation Processes from Space and Ground Observations. Oxford [usw.]: Pergamon Pr, 1983.
MLA (9th ed.) Zitazioa
Ragan, R. M., eta M. Gordon Wolman. Study of Land Transformation Processes from Space and Ground Observations. Pergamon Pr, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.