Gibson, K. R., & Parker, S. T. (1990). "Language" and intelligence in monkeys and apes: Comparative developmental perspectives. Cambridge University Press.
Dyfyniad Arddull ChicagoGibson, Kathleen Rita, and Sue Taylor Parker. "Language" and Intelligence in Monkeys and Apes: Comparative Developmental Perspectives. Cambridge [England]: Cambridge University Press, 1990.
Dyfyniad MLAGibson, Kathleen Rita, and Sue Taylor Parker. "Language" and Intelligence in Monkeys and Apes: Comparative Developmental Perspectives. Cambridge University Press, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.