APA (7th ed.) Citation

Martin, B., Archambault, J., & Lee, R. J. (1989). The magic pumpkin. H. Holt.

Chicago Style (17th ed.) Citation

Martin, Bill, John Archambault, and Robert J. Lee. The Magic Pumpkin. New York, NY: H. Holt, 1989.

MLA (9th ed.) Citation

Martin, Bill, et al. The Magic Pumpkin. H. Holt, 1989.