El-Zein, A., El-Awar, F., & Faris, R. (1979). Infectious laryngotracheitis a new threat for the Lebanese poultry industry. Faculty of Agricultural and Food Sciences, American University of Beirut.
Παραπομπή σε μορφή Chicago (17η εκδ.)El-Zein, A., F. El-Awar, και Ramona Faris. Infectious Laryngotracheitis a New Threat for the Lebanese Poultry Industry. Beirut, Lebanon: Faculty of Agricultural and Food Sciences, American University of Beirut, 1979.
Παραπομπή σε μορφή MLA (8th εκδ.)El-Zein, A., et al. Infectious Laryngotracheitis a New Threat for the Lebanese Poultry Industry. Faculty of Agricultural and Food Sciences, American University of Beirut, 1979.
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