APA (7th ed.) Citation

(2009). Our earth: Discover and understand our world's natural wonders. BPI India Pvt Ltd.

Chicago Style (17th ed.) Citation

Our Earth: Discover and Understand Our World's Natural Wonders. New Delhi: BPI India Pvt Ltd, 2009.

MLA (9th ed.) Citation

Our Earth: Discover and Understand Our World's Natural Wonders. BPI India Pvt Ltd, 2009.