Studies on the pathogenesis and pathology of experimental Newcastle diseases in birds with different levels of immunity Hamid, Helmy text en xvi, 136 p.: ill.; 29 cm. NEWCASTLE DISEASES -- BIRDS -- PATHOLOGY -- THESIS Th.636.5.089/HAM/s 210520 20210520150428 INLIS000000000009155 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)