American National Standards Institute, American National Standards Institute, Institute of Electrical and Electronics Engineers. Standards Coordinating Committee 14 on Quantities, U. a. L. S., & Institute of Electrical and Electronics Engineers. Standards Coordinating Committee 14 on Quantities, U. a. L. S. (1978). IEEE standard letter symbols for units of measurement: SI units, customary Inch-Pound units, and certain other units. New York, New York: IEEE.

American National Standards Institute, American National Standards Institute, Units and Letter Symbols Institute of Electrical and Electronics Engineers. Standards Coordinating Committee 14 on Quantities, and Units and Letter Symbols Institute of Electrical and Electronics Engineers. Standards Coordinating Committee 14 on Quantities. IEEE Standard Letter Symbols for Units of Measurement: SI Units, Customary Inch-Pound Units, and Certain Other Units. New York, New York: IEEE, 1978.

American National Standards Institute, American National Standards Institute, Units and Letter Symbols Institute of Electrical and Electronics Engineers. Standards Coordinating Committee 14 on Quantities, and Units and Letter Symbols Institute of Electrical and Electronics Engineers. Standards Coordinating Committee 14 on Quantities. IEEE Standard Letter Symbols for Units of Measurement: SI Units, Customary Inch-Pound Units, and Certain Other Units. New York, New York: IEEE, 1978.