APA Style

al, E., Salim, I. (1976). Congress Asia Pacific Academy of Opthalmology, ke 6. Bali, 8 August 1976 . Bali: Asia Pacific Academy of Opthalmology.

MLA Style

al, Et., Salim, Isak. "Congress Asia Pacific Academy of Opthalmology, ke 6. Bali, 8 August 1976". Bali: Asia Pacific Academy of Opthalmology, 1976. print.