APA (7th ed.) Citation

DeBruin, J. (1989). School yard-backyard cycles of science. Good Apple.

Chicago Style (17th ed.) Citation

DeBruin, Jerry. School Yard-backyard Cycles of Science. Carthage, IL: Good Apple, 1989.

MLA (9th ed.) Citation

DeBruin, Jerry. School Yard-backyard Cycles of Science. Good Apple, 1989.

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