American Society of Civil Engineers. Committee on Specifications. (2013). Preparation of construction specifications for civil projects. American Society of Civil Engineers.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)American Society of Civil Engineers. Committee on Specifications. Preparation of Construction Specifications for Civil Projects. Reston, Virginia: American Society of Civil Engineers, 2013.
MLA -ийн эшлэл (9 дэх хэвлэлт)American Society of Civil Engineers. Committee on Specifications. Preparation of Construction Specifications for Civil Projects. American Society of Civil Engineers, 2013.
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