Perez, E., Kummeling, A., Janssen, M., Alvarado, R., Donado, P., Dwinger, R., . . . Jiménez Sánchez, C. (1997). Infectious agents associated with diarrhoea of calves in the canton of Tilarán, Costa Rica.
استشهاد بنمط شيكاغوPerez, E., A. Kummeling, M.M.H Janssen, R. Alvarado, P. Donado, R.H Dwinger, Magally Caballero, و Carlos Jiménez Sánchez. Infectious Agents Associated With Diarrhoea of Calves in the Canton of Tilarán, Costa Rica. 1997.
MLA استشهادPerez, E., et al. Infectious Agents Associated With Diarrhoea of Calves in the Canton of Tilarán, Costa Rica. 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.