WALTON, W. C. (1970). Groundwater Resource Evaluation William C. Walton. McGraw-Hill.
Chicago Style aipamenaWALTON, William C. Groundwater Resource Evaluation William C. Walton. McGraw-Hill, 1970.
MLA aipamenaWALTON, William C. Groundwater Resource Evaluation William C. Walton. McGraw-Hill, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.