Autor
American National Standards Institute
Instrument Society of America
2
Atomic Industrial Forum
1
Canadian Standard
1
Institute of Electrical and Electronics Engineers (Piscattaway, Estados Unidos)
1
Institute of Electrical and Electronics Engineers. Standards Coordinating Committee 14 on Quantities, Units and Letter Symbols
1
Institute of Electrical and Electronics Engineers. Standards Coordinating Committee 14, Graphic Symbols and Designations
1