Delfín-Alfonso, C. A., López-González, C. A., & Lara-Díaza, N. E. (2011). The American black bear in northwestern Mexico: Retrieval of occurrence records. Instituto de Ecología, A.C.
Chicago-čujuhus (17. p.)Delfín-Alfonso, Christian Alejandro, Carlos Alberto López-González, juo Nalleli Elvira Lara-Díaza. The American Black Bear in Northwestern Mexico: Retrieval of Occurrence Records. Instituto de Ecología, A.C, 2011.
MLA-čujuhus (9. p.)Delfín-Alfonso, Christian Alejandro, et al. The American Black Bear in Northwestern Mexico: Retrieval of Occurrence Records. Instituto de Ecología, A.C, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.
