Endangered Species: A Documentary and Reference Guide
Bioindicator Species: Frogs Matter
Bioindicator Species: Monarch Butterflies Matter
Bioindicator Species: Dragonflies Matter
Great Minds of Science Set 2: Jane Goodall: Revolutionary Primatologist and Anthropologist
Defining Documents in American History: Environment & Conservation (1791-2015)
The Global Water Crisis: A Reference Handbook
Water Planet: The Culture, Politics, Economics, and Sustainability of Water on Earth
Animal Rights: A Documentary and Reference Guide