APA-ийн эшлэл(7 дахь хэвлэлт)

Kennedy, W., & Bilotte, M. (2002). Baculites ovatus SAY, 1820, a North American ammonite from the Maastrichtian of Roquefort, Landes, France.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Kennedy, W., ба M. Bilotte. Baculites Ovatus SAY, 1820, a North American Ammonite from the Maastrichtian of Roquefort, Landes, France. 2002.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Kennedy, W., ба M. Bilotte. Baculites Ovatus SAY, 1820, a North American Ammonite from the Maastrichtian of Roquefort, Landes, France. 2002.