(1999). ISO 81714 - 1: Design of grapical symbols for use in the technical documentation of products part 1. Sri Lanka Standards Institution.
Chicago Style (17th ed.) CitationISO 81714 - 1: Design of Grapical Symbols for Use in the Technical Documentation of Products Part 1. Colombo: Sri Lanka Standards Institution, 1999.
MLA (9th ed.) CitationISO 81714 - 1: Design of Grapical Symbols for Use in the Technical Documentation of Products Part 1. Sri Lanka Standards Institution, 1999.
Warning: These citations may not always be 100% accurate.