Frogs

Kultahanhi: Grimm-veljesten satuja

Jacob Grimm

Het Leven der Dieren. Deel 3, Hoofdstuk 5: De Amphibiën

Alfred Edmund Brehm

The Buckle My Shoe Picture Book

Yazar Bilinmiyor

The Book of the Damned

Charles Fort

Descriptions of Two Species of Frogs, Genus Ptychohyla
Studies of American Hylid Frogs, V

William Edward Duellman

Genera of Leptodactylid Frogs in México

John D. Lynch

The Systematics of the Frogs of the Hyla Rubra Group in Middle America

Juan R. León

Some Reptiles and Amphibians from Korea

George William Byers

The Ducks and Frogs, a Tale of the Bogs.

Fanny Fire-Fly

A Field Study of the Kansas Ant-Eating Frog, Gastrophryne olivacea

Henry S. Fitch

The Genera of Phyllomedusine Frogs (Anura: Hylidae)

William Edward Duellman

A Synopsis of Neotropical Hylid Frogs, Genus Osteocephalus

William Edward Duellman

Middle American Frogs of the Hyla microcephala Group

William Edward Duellman

A New Species of Frog (Genus Tomodactylus) from Western México

Robert G. Webb

A Review of the Frogs of the Hyla bistincta Group

William Edward Duellman

The Ranidae: How to breed, feed and raise the edible frog

Unknown

A Review of the Middle American Tree Frogs of the Genus Ptychohyla

William Edward Duellman

Amphibians and Reptiles of the Rainforests of Southern El Petén, Guatemala

William Edward Duellman

Descriptions of New Hylid Frogs From Mexico and Central America

William Edward Duellman

Βάτραχοι

Aristophanes

Proefnemingen van de particuliere beweeging der spieren in de kikvorsch

Jan Swammerdam

How Freckle Frog Made Herself Pretty

Charlotte B. Herr

The Tale of Mr. Jeremy Fisher

Beatrix Potter

The Frogs

Aristophanes