5 Amphibians General Works, Treatises, Textbooks – QL668.A6 1 Apoda (Gymnophiona) 668.C2 6 Caudata (Urodela, Salamanders, Newts) QL668.E2 43 Ecuadata (Anua, Salientia, Frogs, Toads) QL669 7 Amphibians - Anatomy & Morphology QL669.2-.3 1,579 Amphibians - Physiology, Reproduction QL671-699 1,572 Birds QL671-674 132 - General Works, Treatises, Textbooks QL675 16 Bird's Eggs & Nests QL676.5 32 Bird Protection. Birdhouses, etc. QL676.7 14 Rare & Endangered Species QL676.8 2 Extinct QL677-677.2 17 Classification, Nomenclature QL677.3 7 Evolution QL677.5 40 Study & Teaching 3 America, General Works QL681-682 112 America & United States, General Works 50 United States - by Region 115 United States - by State QL685 9 Canada QL686 8 Mexico QL687 13 Central America
Amphibians – General Works, Treatises, Textbooks 5 QL668.A6 Apoda (Gymnophiona) 1 668.C2 Caudata (Urodela, Salamanders, Newts) 6 QL668.E2 Ecuadata (Anua, Salientia, Frogs, Toads) 43 QL669 Amphibians - Anatomy & Morphology 7 QL669.2-.3 Amphibians - Physiology, Reproduction 1,579 QL671-699 Birds 1,572 QL671-674 - General Works, Treatises, Textbooks 132 QL675 Bird's Eggs & Nests 16 QL676.5 Bird Protection. Birdhouses, etc. 32 QL676.7 Rare & Endangered Species 14 QL676.8 Extinct 2 QL677-677.2 Classification, Nomenclature 17 QL677.3 Evolution 7 QL677.5 Study & Teaching 40 America, General Works 3 QL681-682 America & United States, General Works 112 United States - by Region 50 United States - by State 115 QL685 Canada 9 QL686 Mexico 8 QL687 Central America 13