Gaya APA

Pojasek, Robert B.. (1977). Drinking water quality enhancement through source protection . : Ann Arbor Science.

Gaya Chicago

Pojasek, Robert B.. Drinking water quality enhancement through source protection. : Ann Arbor Science, 1977. Text.

Gaya MLA

Pojasek, Robert B.. Drinking water quality enhancement through source protection. : Ann Arbor Science, 1977. Text.

Gaya Turabian

Pojasek, Robert B.. Drinking water quality enhancement through source protection. : Ann Arbor Science, 1977. Print.