Callender, J. H. (1966). Time-Saver Standards: A handbook of arebitectural design (4th ed.).
शिकागो स्टाइल उद्धरणCallender, John Hancock. Time-Saver Standards: A Handbook of Arebitectural Design. 4th ed. 1966.
एमएलए उद्धरणCallender, John Hancock. Time-Saver Standards: A Handbook of Arebitectural Design. 4th ed. 1966.
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