Cita APA (7a ed.)

Gray, W., & Manning, G. (1964). Concrete water towers, bunkers, silos and other elevated structures (4th ed. / revised by G.P. Manning.). Concrete Publications.

Cita Chicago Style (17a ed.)

Gray, W.S, y G.P Manning. Concrete Water Towers, Bunkers, Silos and Other Elevated Structures. 4th ed. / revised by G.P. Manning. London: Concrete Publications, 1964.

Cita MLA (9a ed.)

Gray, W.S, y G.P Manning. Concrete Water Towers, Bunkers, Silos and Other Elevated Structures. 4th ed. / revised by G.P. Manning. Concrete Publications, 1964.