APA (7th ed.) Citation

American Society for Testing and Materials (ASTM). (2013). Standard Test method for hardness in water. ICONTEC.

Chicago Style (17th ed.) Citation

American Society for Testing and Materials (ASTM). Standard Test Method for Hardness in Water. West Conshohocken, (Pensilvania): ICONTEC, 2013.

MLA (9th ed.) Citation

American Society for Testing and Materials (ASTM). Standard Test Method for Hardness in Water. ICONTEC, 2013.