Stephenson, George E. Power technology. [electronic resource] / George E. Stephenson.. — 4th ed.. : Student manual / — Albany, N.Y. : : Delmar Publishers,, c1986.. — iv, 85 p. : : ill. ; 23 cm. ISBN: 0827324243 (pbk.) 9780827324244 (pbk.) Subjects--Topical Terms: Power (Mechanics)Power resources.