APA (7th ed.) Citation

Ariaratnam, V. (1969). Christopher Columbus ([1st ed.). Printed by the Nadaraja Press.

Chicago Style (17th ed.) Citation

Ariaratnam, V. Christopher Columbus. [1st ed. Colombo: Printed by the Nadaraja Press, 1969.

MLA (8th ed.) Citation

Ariaratnam, V. Christopher Columbus. [1st ed. Printed by the Nadaraja Press, 1969.