GAD, N., MOUSA, S., SOLIMAN, A., BAYOUMI, A., ATIA, M. (1989). 'PASTEURELLA MULTOCIDA AND PASTEURELLA ANATIPESTIFER INFECTIONS IN DUCKS I-IMMUONOLOGICAL STUDIES', Assiut Veterinary Medical Journal, 21.1(41), pp. 190-192. doi: 10.21608/avmj.1989.188248