Gray, W. S., & Manning, G. P. (1964). Concrete water towers, bunkers, silos and other elevated structures / by W.S. Gray (4th ed. revised by G.P. Manning.). Concrete Publications.
Chicago Style (17th ed.) CitationGray, W. S., and G. P. Manning. Concrete Water Towers, Bunkers, Silos and Other Elevated Structures / by W.S. Gray. 4th ed. revised by G.P. Manning. Concrete Publications, 1964.
MLA (9th ed.) CitationGray, W. S., and G. P. Manning. Concrete Water Towers, Bunkers, Silos and Other Elevated Structures / by W.S. Gray. 4th ed. revised by G.P. Manning. Concrete Publications, 1964.
Warning: These citations may not always be 100% accurate.