Bottle, K. K. (1948). Fractional horse power electric motors: A guide to types and applications. Charles Griffin.
Dyfyniad Arddull ChicagoBottle, K K. Fractional Horse Power Electric Motors: A Guide to Types and Applications. London: Charles Griffin, 1948.
Dyfyniad MLABottle, K K. Fractional Horse Power Electric Motors: A Guide to Types and Applications. Charles Griffin, 1948.
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