A recreation of the ECOLOGY symbol used in early Earth Day materials, by Melanie Schleeter McCalmont. CC A-SA 3.0U. Source: Wikimedia Commons
The online catalog, contains many works dealing with the Environment and Ecological Systems.
There are a number of Library of Congress Subject Headings that will take you to books related to the subject of this webpage. Some of them are listed below. Click on a subject heading below to search it in the online catalog.
Click Ask a Librarian in the box to the upper right side of the screen if you need help identifying others.