Παραπομπή σε μορφή APA (7η εκδ.)

Nicholas, S. E. N. (1933). Commercial Ceylon. printed by the Times of Ceylon Company, Limited, Printers and Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Nicholas, Samuel Ernest N. Commercial Ceylon. Colombo, Ceylon: printed by the Times of Ceylon Company, Limited, Printers and Publishers, 1933.

Παραπομπή σε μορφή MLA (8th εκδ.)

Nicholas, Samuel Ernest N. Commercial Ceylon. printed by the Times of Ceylon Company, Limited, Printers and Publishers, 1933.