APA aipamena

Ehlers, V. M. (1958). Municipal And Rural Sanitation Victor M. Ehlers And Ernest W. Steel. McGraw-Hill.

Chicago Style aipamena

Ehlers, Victor M. Municipal And Rural Sanitation Victor M. Ehlers And Ernest W. Steel. McGraw-Hill, 1958.

MLA aipamena

Ehlers, Victor M. Municipal And Rural Sanitation Victor M. Ehlers And Ernest W. Steel. McGraw-Hill, 1958.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.