Gaya APA

Payne, O. (2009). National Geographic — The Tallest Trees: Redwoods (216 No. 4 October 2009). USA: National Geographic Society.

Gaya MLA

Payne, Oliver. "National Geographic — The Tallest Trees: Redwoods". 216 No. 4 October 2009 USA: National Geographic Society, 2009. Print.