van de Weerd, H., & Ison, S. (2019). Providing Effective Environmental Enrichment to Pigs: How Far Have We Come? Animals (Basel).
Citação norma Chicagovan de Weerd, Heleen, and Sarah Ison. "Providing Effective Environmental Enrichment to Pigs: How Far Have We Come?" Animals (Basel) 2019.
Citação norma MLAvan de Weerd, Heleen, and Sarah Ison. "Providing Effective Environmental Enrichment to Pigs: How Far Have We Come?" Animals (Basel) 2019.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.