APA-referens (7:e uppl.)

Castillo-Guevara, C., Unda-Harp, K., Lara, C., & Serio-Silva, J. C. (2012). Environmental enrichment and its effects on exhibit stereotypic behaviors in jaguars (Panthera onca) from the Yaguar Xoo Zoological Park, Oaxaca. Instituto de Ecología, A.C.

Chicago-referens (17:e uppl.)

Castillo-Guevara, Citlalli, Karime Unda-Harp, Carlos Lara, och Juan Carlos Serio-Silva. Environmental Enrichment and Its Effects on Exhibit Stereotypic Behaviors in Jaguars (Panthera Onca) from the Yaguar Xoo Zoological Park, Oaxaca. Instituto de Ecología, A.C, 2012.

MLA-referens (9:e uppl.)

Castillo-Guevara, Citlalli, et al. Environmental Enrichment and Its Effects on Exhibit Stereotypic Behaviors in Jaguars (Panthera Onca) from the Yaguar Xoo Zoological Park, Oaxaca. Instituto de Ecología, A.C, 2012.

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