Singhal, J. P. (1963). The Sphinx speaks: Or the story of the prehistoric nations. Sadgyan Sadan.
Style de citation Chicago (17e éd.)Singhal, Jwala Prasad. The Sphinx Speaks: Or the Story of the Prehistoric Nations. New Delhi: Sadgyan Sadan, 1963.
Style de citation MLA (8e éd.)Singhal, Jwala Prasad. The Sphinx Speaks: Or the Story of the Prehistoric Nations. Sadgyan Sadan, 1963.
Attention : ces citations peuvent ne pas être correctes à 100%.