Scullin, C. M. (1983). Excavation and grading code administration, inspection and enfocement. Prentice-Hall of India.
शिकागो स्टाइल उद्धरणScullin, C Michael. Excavation and Grading Code Administration, Inspection and Enfocement. New Jersey: Prentice-Hall of India, 1983.
एमएलए उद्धरणScullin, C Michael. Excavation and Grading Code Administration, Inspection and Enfocement. Prentice-Hall of India, 1983.
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