00288nam a2200097 a 4500008004100000050001800041245007000059260003200129300002000161350000900181120416s1971    ||||||||||||||||| ||    u  aTK 7871.9 Des00aDesigning with TTL Integrated circuitscedited by Robert L Morris  aNew YorkbMcGraw-Hillc1971  aix, 322p. : ill  a0.00