APA (7th ed.) Citation

Helle, W., & Sabelis, M. W. (1985). Spider mites: Their biology, natural enemies and control. Elsevier.

Chicago Style (17th ed.) Citation

Helle, W., and M. W. Sabelis. Spider Mites: Their Biology, Natural Enemies and Control. Amsterdam [etc.]: Elsevier, 1985.

MLA (9th ed.) Citation

Helle, W., and M. W. Sabelis. Spider Mites: Their Biology, Natural Enemies and Control. Elsevier, 1985.