APA (7th ed.) Citation

Knott, R. C., Hosoume, K., & Bergman, L. (1991). Earthworms: Teacher's guide, grades 6-10 (Rev.). Lawrence Hall of Science, University of California.

Chicago Style (17th ed.) Citation

Knott, Robert C., Kimi Hosoume, and Lincoln Bergman. Earthworms: Teacher's Guide, Grades 6-10. Rev. Berkeley, CA: Lawrence Hall of Science, University of California, 1991.

MLA (9th ed.) Citation

Knott, Robert C., et al. Earthworms: Teacher's Guide, Grades 6-10. Rev. Lawrence Hall of Science, University of California, 1991.