Citazione Stile APA (7a Edizione)

Twort. Alan Charles. (1963). A textbook of water supply. American Elsevier Pub.

Citazione stile Chigago Style (17a edizione)

Twort. Alan Charles. A Textbook of Water Supply. New York: American Elsevier Pub, 1963.

Citatione MLA (9a ed.)

Twort. Alan Charles. A Textbook of Water Supply. American Elsevier Pub, 1963.