Llanos, C. et al. 2012. Determination of the median lethal concentration (LC50) and efficacy as an anesthetic of eugenol on xiphophorus helleri (Heckel, 1848) (Cyprinodontiformes: poecilidae). Revista de Investigaciones Veterinarias del Perú. 23, 4 (Dec. 2012), 429–440. DOI:https://doi.org/10.15381/rivep.v23i4.949.