Cofnodi Dyfyniadau
Dyfyniad APA
ebrary, Inc, & Goodfellow, R. J. F. (2011). Concrete for underground structures: Guidelines for design and construction. Society for Mining, Metallurgy, and Exploration.
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Dyfyniad Arddull Chicago
ebrary, Inc, and Robert J. F. Goodfellow. Concrete for Underground Structures: Guidelines for Design and Construction. Englewood, Colo.: Society for Mining, Metallurgy, and Exploration, 2011.
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Dyfyniad MLA
ebrary, Inc, and Robert J. F. Goodfellow. Concrete for Underground Structures: Guidelines for Design and Construction. Society for Mining, Metallurgy, and Exploration, 2011.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.