| Rev sub edition (Dell Books, April 1, 1995), cover price $10.95 | About this edition:
Offers practical suggestions on keeping the earth clean through daily activities
| Dell Books, December 1, 1991, cover price $15.00 | also contains Snakes: Built for the Hunt
| About this edition:
Celebrating the twenty-fifth anniversary of Earth Day, an updated guide offers simple suggestions on how to conserve the Earth's resources with ideas about organic gardening, saving water, community recycling, and preserving the rainforests.