Enghraifft:
Mae'r International Organization for Standardization (2018) yn nodi...
NEU
... (International Organization for Standardization, 2018).
Awdur Corfforaethol. (Blwyddyn). Teitl (Rhif y safon). URL
Enghraifft:
International Organization for Standardization. (2018). Occupational health and safety management systems—Requirements with guidance for use (ISO Standard No. 45001:2018). https://www.iso.org/standard/63787.html