Cita APA

Spellman, F. R. (2011). Spellman's Standard handbook for wastewater operators Vol II (Second.).

Chicago Edition Citation

Spellman, Frank R. Spellman's Standard Handbook for Wastewater Operators Vol II. Second. Florida, CRC Press, 2011.

Cita MLA

Spellman, Frank R. Spellman's Standard Handbook for Wastewater Operators Vol II. Second. 2011.