Reichard, J. S., 1940- 1950- 1963- 1951- 1953-, & 1950- 1963-. (2011). Environmental geology. Dubuque, IA: McGraw-Hill.
Chicago Style aipamenaReichard, James S., 1940- 1950- 1963- 1951- 1953-, và 1950- 1963-. Environmental Geology. Dubuque, IA: McGraw-Hill, 2011.
MLA aipamenaReichard, James S., 1940- 1950- 1963- 1951- 1953-, và 1950- 1963-. Environmental Geology. Dubuque, IA: McGraw-Hill, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.