APA (7th ed.) Citation

Skurzynski, G. (1997). Cliff-hanger (2.). National Geographic Society.

Chicago Style (17th ed.) Citation

Skurzynski, Gloria. Cliff-hanger. 2. Washington: National Geographic Society, 1997.

MLA (9th ed.) Citation

Skurzynski, Gloria. Cliff-hanger. 2. National Geographic Society, 1997.

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