Goolaerts, S., Kennedy, W., Dupuis, C., & Steurbaut, E. (2004). Terminal Maastrichtian ammonites from the Cretaceous-Paleogene Global Stratotype Section and Point, El Kef, Tunisia.
Cita Chicago (17th ed.)Goolaerts, S., W. Kennedy, C. Dupuis, i E. Steurbaut. Terminal Maastrichtian Ammonites from the Cretaceous-Paleogene Global Stratotype Section and Point, El Kef, Tunisia. 2004.
Cita MLA (9th ed.)Goolaerts, S., et al. Terminal Maastrichtian Ammonites from the Cretaceous-Paleogene Global Stratotype Section and Point, El Kef, Tunisia. 2004.
Atenció: Aquestes cites poden no estar 100% correctes.