APA-referens

Velayudhan, P. (1976). Brief history of the world Rev ed. 2pts. S.Viswanathan Private Limited.

Chicago-stil citat

Velayudhan, Ps. Brief History of the World Rev Ed. 2pts. Madras: S.Viswanathan Private Limited, 1976.

MLA-referens

Velayudhan, Ps. Brief History of the World Rev Ed. 2pts. S.Viswanathan Private Limited, 1976.