Tohutoro APA (7th ed.)
Gray,W.S. Concrete water towers, bunkers, silos and other elevated structures. Concrete Pub. Ltd. 4th ed.
Tohutoru Kātū Chicago (17th ed.)
Gray,W.S. Concrete Water Towers, Bunkers, Silos and Other Elevated Structures. London: Concrete Pub. Ltd. 4th ed.
Tohutoro MLA (9th ed.)
Gray,W.S. Concrete Water Towers, Bunkers, Silos and Other Elevated Structures. Concrete Pub. Ltd. 4th ed.
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