APA (7th ed.) Citation

Hansen, B. A. (1996). Parading with piglets: A playful ABC pop-up. National Geographic Society.

Chicago Style (17th ed.) Citation

Hansen, Biruta Akerbergs. Parading with Piglets: A Playful ABC Pop-up. [Washington, D.C]: National Geographic Society, 1996.

MLA (9th ed.) Citation

Hansen, Biruta Akerbergs. Parading with Piglets: A Playful ABC Pop-up. National Geographic Society, 1996.