na INLIS000000000000050 In 0010-1021000050 A Practical manual and sofware package for activitive surveillance in developing countries ANGUS, Cameron ANGUS, Cameron Australia Australian Centre for International Agriculture Research 1999 viii, 330 p.: ill 30 cm ISBN 1-86320-234-x - 30 LIVESTOCK DISEASE DISEASE SURVEYS. 49/BPT-C/2006