APA (7th ed.) Citation

Bardelli, G. G., & Ildos, A. S. (2009). The great national parks of the world. White Star Publisher.

Chicago Style (17th ed.) Citation

Bardelli, Giorgio G., and Angela S. Ildos. The Great National Parks of the World. Vercelli: White Star Publisher, 2009.

MLA (9th ed.) Citation

Bardelli, Giorgio G., and Angela S. Ildos. The Great National Parks of the World. White Star Publisher, 2009.