Motz, R. (1942). Thirty questions about Belgium. London: Lincolns-Prager.
芝加哥风格引文Motz, Roger. Thirty Questions About Belgium. London: Lincolns-Prager, 1942.
MLA引文Motz, Roger. Thirty Questions About Belgium. London: Lincolns-Prager, 1942.
警告：这些引文格式不一定是100％准确.