Comstock Classic Handbooks – serie

Handbook of Turtles

The Turtles of the United States, Canada, and Baja California

Handbook of Lizards

Lizards of the United States and of Canada

Handbook of Salamanders

The Salamanders of the United States, of Canada, and of Lower California

Handbook of Frogs and Toads of the United States and Canada

Handbook of Lizards

Lizards of the United States and of Canada

Handbook of Turtles

The Turtles of the United States, Canada, and Baja California

Handbook of Snakes of the United States and Canada

Two-Volume Set