BOUWER, H. (1978). Groundwater hydrology. McGraw- Hill Kogakusha.
Chicago Style (17th ed.) ZitazioaBOUWER, Herman. Groundwater Hydrology. Tokyo: McGraw- Hill Kogakusha, 1978.
MLA (9th ed.) ZitazioaBOUWER, Herman. Groundwater Hydrology. McGraw- Hill Kogakusha, 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.