Παραπομπή APA

Hardman, D. J., McEldowney, S., & Waite, S. (1994). Pollution: Ecology and biotreatment.

Παραπομπή Chicago Style

Hardman, David J., Sharron McEldowney, και Stephen Waite. Pollution: Ecology and Biotreatment. London, Longman Scientific & Technical, 1994.

Παραπομπή MLA

Hardman, David J., et al. Pollution: Ecology and Biotreatment. 1994.