Citazione Stile APA (7a Edizione)

Spellman, F. R., & Drinan, J. E. (2001). The handbook for waterworks operator certification. Technomic.

Citazione stile Chigago Style (17a edizione)

Spellman, Frank R., e Joanne E. Drinan. The Handbook for Waterworks Operator Certification. Lancaster, Penn: Technomic, 2001.

Citatione MLA (9a ed.)

Spellman, Frank R., e Joanne E. Drinan. The Handbook for Waterworks Operator Certification. Technomic, 2001.