00484cam a2200169 4500 0090480325 621.3 PRA L-9, P-48 Pratt, William Thomas. 41134 Worked examples in electrotechnology [by] W. T. Pratt. 7th ed. London, Hutchinson, 1968. 255 p. illus. 22 cm. 0 0 0 621_300000000000000_PRA Electrical engineering MCE 379 ddc BK 545324 545324 0 0 ddc 0 0 MCE MCE 2014-05-21 0 621.3 PRA MCE-739 2014-05-21 2014-05-21 BK