APA (7th ed.) Citation

Sadler, J. E. (1966). J. A. comenius and the concept of universal education. George Allen and Unwin.

Chicago Style (17th ed.) Citation

Sadler, John Edward. J. A. Comenius and the Concept of Universal Education. London: George Allen and Unwin, 1966.

MLA (9th ed.) Citation

Sadler, John Edward. J. A. Comenius and the Concept of Universal Education. George Allen and Unwin, 1966.