Cita APA (7th ed.)

Sommerfeld, E. O. (1999). Iron and manganese removal handbook. American Water Works.

Cita Chicago (17th ed.)

Sommerfeld, Elmer O. Iron and Manganese Removal Handbook. Denver, Colo.: American Water Works, 1999.

Cita MLA (9th ed.)

Sommerfeld, Elmer O. Iron and Manganese Removal Handbook. American Water Works, 1999.