APA Citation

De, K. (1962). A text book on astronomy (2nd ed.). Calcutta: Book Syndicate.

Chicago Style Citation

De, K.K. A Text Book On Astronomy. 2nd ed. Calcutta: Book Syndicate, 1962.

MLA Citation

De, K.K. A Text Book On Astronomy. 2nd ed. Calcutta: Book Syndicate, 1962.

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