APA (7th ed.) Citation

Crawford, O. G. S. (1953). Castles and churches in the Middle Nile region. Commissioner for archaeology.

Chicago Style (17th ed.) Citation

Crawford, Osbert Guy Stanhope. Castles and Churches in the Middle Nile Region. Khartoum: Commissioner for archaeology, 1953.

MLA (9th ed.) Citation

Crawford, Osbert Guy Stanhope. Castles and Churches in the Middle Nile Region. Commissioner for archaeology, 1953.