Cita APA (7a ed.)

Schubert, B. W., & Soibelzon, L. H. (2011). The largest known bear, Arctotherium angustidens, from the early Pleistocene pampeam region of Argentina: With a discussion of size and diet trends in bears.

Cita Chicago Style (17a ed.)

Schubert, Blaine W., y Leopoldo Héctor Soibelzon. The Largest Known Bear, Arctotherium Angustidens, from the Early Pleistocene Pampeam Region of Argentina: With a Discussion of Size and Diet Trends in Bears. 2011.

Cita MLA (8a ed.)

Schubert, Blaine W., y Leopoldo Héctor Soibelzon. The Largest Known Bear, Arctotherium Angustidens, from the Early Pleistocene Pampeam Region of Argentina: With a Discussion of Size and Diet Trends in Bears. 2011.