General Nature in 1987

Guide to the Mammals of Pennsylvania by Merritt, Joseph

British Fungus Flora: Agarics and Boleti 5: Strophariaceae & Coprinaceae by Gregory, Norma M., Watling, Roy

Wildflowers of the Texas Hill Country by Enquist, Marshall

Animals Without Backbones: An Introduction to the Invertebrates by Pearse, John, Buchsbaum, Ralph, Buchsbaum, Mildred

The Egg and I by MacDonald, Betty

Outbound Journeys in Pennsylvania: A Guide to Natural Places for Individual and Group Outings by Bonta, Marcia M.

The Works of Charles Darwin: Subset by Darwin, Charles

The Embers and the Stars by Kohák, Erazim