Cita APA (7th ed.)

ANDREWS, W. A. (1972). A Guide to the study of: Environmental pollution. Prentice-Hall.

Cita Chicago (17th ed.)

ANDREWS, William A. A Guide to the Study of: Environmental Pollution. New Jersey: Prentice-Hall, 1972.

Cita MLA (9th ed.)

ANDREWS, William A. A Guide to the Study of: Environmental Pollution. Prentice-Hall, 1972.

Atenció: Aquestes cites poden no estar 100% correctes.