Handbook of electronic meters : theory and application / John D. Lenk. Lenk, John D. Electronic instruments. Electronic measurements. TK7878 .L4 621.37 LEH Includes index. Englewood Cliffs ; New Jersey : Prentice-Hall, 1969. 1969. 1969 Text xii, 180 p. : eng Prentice-Hall series in electronic technology