Mains, G. (1989). Gentle warriors: Geoff Mains. Knights.
Chicago-Zitierstil (17. Ausg.)Mains, Geoff. Gentle Warriors: Geoff Mains. Stamford, Conn.: Knights, 1989.
MLA-Zitierstil (8. Ausg.)Mains, Geoff. Gentle Warriors: Geoff Mains. Knights, 1989.
警告：这些引文格式不一定是100％准确.