Vertebrates  by Alvin, Virginia, and Robert Silverstein.
j596 Silverstein

Vertebrates by Nathan Aaseng.
j596 Aaseng

Amphibians : creatures of the land and water 
by Edward J. Maruska.
j597.6 Maruska

Amphibian  by Barry Clarke
j597.6 Clarke

Reptiles & Amphibians : Birth & Growth 
by Andres Llamas Ruiz
j597.6 Llamas Ruiz

What is an Amphibian? by Robert Snedden
j597.6 Snedden

About Birds  by Cathryn Sill
j598 Sill

Birds and Mammals by Lionel Bender
j591 145

Birds, a Guide to the Most Familiar American Birds
 by Herbert S. Zim and Ira N. Gabrielson
j598.07 9951

Birds of the World by Herbert S. Zim.
REF 598 Au937b

Amazing Fish  by Mary Ling
j597 Ling

Encyclopedia of Fish by Maurice and Robert Burton
597 1989

Fish by Casey Horton
j597 475

Discovering Saltwater Fish by Alwyne Wheeler
j597 933

Amazing Mammals by Alexandra Parsons
j599 Parsons

Grzimek's Encyclopedia of Mammals
REF 599 Grzimek's

Sorting Out Mammals  by Samuel G. Woods
j599 Woods

The Sierra Club Book of Great Mammals
j599 Sierra

About Reptiles
j597.9 Sill

The Book of Reptiles and Amphibians by Michael H. Bevans
j597.6 146

Fish to Reptiles by Lionel Bender
j597 143

A Look Inside Reptiles  by June Chatfield
j597.9 Chatfield