ebrary, Inc, & Grover, V. I. (2006). Water: Global common and global problems. Science Publishers.
Cita Chicago (17th ed.)ebrary, Inc, i Velma I. Grover. Water: Global Common and Global Problems. Enfield, NH: Science Publishers, 2006.
Cita MLA (9th ed.)ebrary, Inc, i Velma I. Grover. Water: Global Common and Global Problems. Science Publishers, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.