Doughton, M., & Hooper, J. Principles of design, instal.. Andover: Cengage Learning.
शिकागो स्टाइल उद्धरणDoughton, Malcolm, और John Hooper. Principles of Design, Instal.. Andover: Cengage Learning.
एमएलए उद्धरणDoughton, Malcolm, और John Hooper. Principles of Design, Instal.. Andover: Cengage Learning.
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