Kennedy, W. (1993). Campanian and Maastrichtian ammonites from the Mons Basin and adjacent areas (Belgium).
芝加哥风格引文Kennedy, W. Campanian and Maastrichtian Ammonites from the Mons Basin and Adjacent Areas (Belgium). 1993.
MLA引文Kennedy, W. Campanian and Maastrichtian Ammonites from the Mons Basin and Adjacent Areas (Belgium). 1993.
警告：这些引文格式不一定是100％准确.