APA (7th ed.) Citation

Medina, F. A., & Scasso, R. A. The Cretaceous ammonite Hemiptychoceras Spath in Antarctica. Muséum d'Histoire Naturelle.

Chicago Style (17th ed.) Citation

Medina, Francisco Alberto, and Roberto Adrian Scasso. The Cretaceous Ammonite Hemiptychoceras Spath in Antarctica. Muséum d'Histoire Naturelle.

MLA (9th ed.) Citation

Medina, Francisco Alberto, and Roberto Adrian Scasso. The Cretaceous Ammonite Hemiptychoceras Spath in Antarctica. Muséum d'Histoire Naturelle.

Warning: These citations may not always be 100% accurate.