Douce, J. L. (1972). Introduction to the mathematics of servomechanosms. ELBS and English Universities Press.
शिकागो स्टाइल उद्धरणDouce, J L. Introduction to the Mathematics of Servomechanosms. LOndon: ELBS and English Universities Press, 1972.
एमएलए उद्धरणDouce, J L. Introduction to the Mathematics of Servomechanosms. ELBS and English Universities Press, 1972.
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