ryff , peter f 1909-

Electric machinery; the processes, devices, and systems of electromechanical energy conversion / [Book :] peter f ryff. - 2nd. ed. - New York, : McGraw-Hill, 1994. - 320 p : illus. ; 23 cm. - McGraw-Hill electrical and electronic engineering series .

All age.

007021140X 013176876x

70137126 //r84


Electric machinery.

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