APA (7th ed.) Citation

National Wildlife Federation. (1999). Trees are terrific! Chelsea House Publishers.

Chicago Style (17th ed.) Citation

National Wildlife Federation. Trees Are Terrific! Philadelphia, Pa.: Chelsea House Publishers, 1999.

MLA (9th ed.) Citation

National Wildlife Federation. Trees Are Terrific! Chelsea House Publishers, 1999.

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