00520nam a2200181Ia 4500 CTU_38933 210402s9999 xx 000 0 und d 595.182 A976 Sadek M Ayoub Plant nematology: an agricultural training aid Sadek M Ayoub California NemaAid Publication 1980 nematoda,nematode diseases of plants Liên, 000515 Trung tâm Học liệu Trường Đại học Cần Thơ