Kennedy, W., & Bilotte, M. (2002). Baculites ovatus SAY, 1820, a North American ammonite from the Maastrichtian of Roquefort, Landes, France.
芝加哥风格引文Kennedy, W., 与 M. Bilotte. Baculites Ovatus SAY, 1820, a North American Ammonite from the Maastrichtian of Roquefort, Landes, France. 2002.
MLA引文Kennedy, W., 与 M. Bilotte. Baculites Ovatus SAY, 1820, a North American Ammonite from the Maastrichtian of Roquefort, Landes, France. 2002.
警告：这些引文格式不一定是100％准确.