APA Citation

Rosten, I. (1990). National parks: Playground or paradise. [Lugar de publicación no identificado]: National Geographic Society.

Chicago Style Citation

Rosten, Irwin. National Parks: Playground or Paradise. [Lugar de publicación no identificado]: National Geographic Society, 1990.

MLA Citation

Rosten, Irwin. National Parks: Playground or Paradise. [Lugar de publicación no identificado]: National Geographic Society, 1990.

Warning: These citations may not always be 100% accurate.