(1989). Environmental analysis: Air, water and soil. Anmol Pub.
Cita Chicago (17th ed.)Environmental Analysis: Air, Water and Soil. New Delhi: Anmol Pub, 1989.
Cita MLA (9th ed.)Environmental Analysis: Air, Water and Soil. Anmol Pub, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.