López González, C. A., & González Romero, A. (1998). A synthesis of current literature and knowledge about the ecology of the puma (Puma concolor Linnaeus). Instituto de Ecología, A.C.
Chicago-referens (17:e uppl.)López González, Carlos A., och Alberto González Romero. A Synthesis of Current Literature and Knowledge About the Ecology of the Puma (Puma Concolor Linnaeus). Instituto de Ecología, A.C, 1998.
MLA-referens (9:e uppl.)López González, Carlos A., och Alberto González Romero. A Synthesis of Current Literature and Knowledge About the Ecology of the Puma (Puma Concolor Linnaeus). Instituto de Ecología, A.C, 1998.