196 Cycles in Nature: Supplemental Guide
- The Water Cycle, by Helen Frost (Pebble Books, 2000) ISBN
978-0736804097 - The Water Cycle, by Rebecca Olien (Capstone Press, 2005)
ISBN 978-0736851824 - Water, Water Everywhere, Mark J. Rauzon and Cynthia
Overbeck Bix (Sierra Club Books for Children, 1994) ISBN
978-0871563835