Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

O'Neil, B. H. S. J. (1975). Castles and cannon: A study of early artillery fortifications in England (Repr. 1st ed. 1960.). Greenwood.

Chicago Citation Edition Citation

O'Neil, Bryn Hugh St. John. Castles and Cannon: A Study of Early Artillery Fortifications in England. Repr. 1st ed. 1960. Westport/ Connecticut: Greenwood, 1975.

MLA Citation Edition Citation

O'Neil, Bryn Hugh St. John. Castles and Cannon: A Study of Early Artillery Fortifications in England. Repr. 1st ed. 1960. Greenwood, 1975.