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