Cita APA (7th ed.)

Yen, T. F. (1999). Environmental chemistry. Prentice Hall PTR.

Cita Chicago (17th ed.)

Yen, Teh Fu. Environmental Chemistry. Upper Saddle River, NJ: Prentice Hall PTR, 1999.

Cita MLA (9th ed.)

Yen, Teh Fu. Environmental Chemistry. Prentice Hall PTR, 1999.