APA Citation

De, K. (1968). Elements of astronomy (2nd ed.). Calcutta: Book Syndicate.

Chicago Style Citation

De, K.K. Elements of Astronomy. 2nd ed. Calcutta: Book Syndicate, 1968.

MLA Citation

De, K.K. Elements of Astronomy. 2nd ed. Calcutta: Book Syndicate, 1968.

Warning: These citations may not always be 100% accurate.