"Animales extintos." . . "Animales fósiles." . . . . "Les Animaux préhistoriques" . . . . . . . "Album of prehistoric animals"@en . "Album of prehistoric animals" . . . . "A brief introduction to the history and characteristics of prehistoric mammals in general, and specific descriptions of twelve different kinds." . . . . "A brief, general introduction to the history and characteristics of prehistoric mammals in general, and specific descriptions of twelve different kinds." . . . "A brief, general introduction to the history and characteristics of prehistoric mammals in general, and specific descriptions of twelve different kinds."@en . "Animales prehistóricos" . . . . . . "A brief, general introduction to the history and characterists of prehistoric mammals in general, and specific descriptions of 12 different kinds." . . "El gran libro de animales prehistóricos" . "El gran libro de animales prehistóricos"@es . "Juvenile works"@en . "Juvenile works" . . . .