Pratley, John B. Study Notes for Technicians: Electrical and Electronics Principles vol. 2 / (print resoures by John B. Pratley.- - New york: McGraw-Hill, c1982. - 141p.: ill.; 25cm ISBN: 0070846626 Source: B-6918 Subjects--Topical Terms: Study notes--technicians LC Class. No.: T107 / .P62.1982