Lüthgen, W., & Hasnain, N. (1989). Newcastle disease in parrots and budgerigars. Published for the OICD, APHIS, United States Department of Agriculture by Geti Saad.
Chicago Style (17th ed.) CitationLüthgen, Werner, and Nazrul Hasnain. Newcastle Disease in Parrots and Budgerigars. Karachi, Pakistan: Published for the OICD, APHIS, United States Department of Agriculture by Geti Saad, 1989.
MLA (9th ed.) CitationLüthgen, Werner, and Nazrul Hasnain. Newcastle Disease in Parrots and Budgerigars. Published for the OICD, APHIS, United States Department of Agriculture by Geti Saad, 1989.
Warning: These citations may not always be 100% accurate.