Cita APA (7a ed.)

Rudolf, W. (1955). Principles of sewage treatment. National Lime Association.

Cita Chicago Style (17a ed.)

Rudolf, Willem. Principles of Sewage Treatment. Washington: National Lime Association, 1955.

Cita MLA (9a ed.)

Rudolf, Willem. Principles of Sewage Treatment. National Lime Association, 1955.