na INLIS000000000000535 0010-1020000337 Biological control of salvinia molesta in Sri Langka Jacobus A. Doeleman Canberra Australian Centre for International Aricultural Research 1989 14 p.; 24 cm. 0-949511-97-8 632.51 632.51 GULMA PENGENDALIAN SRI LANKA. ACIAR TECHNICAL REPORT; NO. 12. 544 544