Spreadbury, F. G. (1956). Electronic measurements and measuring instruments. Constable.
Chicago-viite (17. p.)Spreadbury, F. G. Electronic Measurements and Measuring Instruments. Lond.: Constable, 1956.
MLA-viite (8. p.)Spreadbury, F. G. Electronic Measurements and Measuring Instruments. Constable, 1956.
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