AWM125 151/5 - [Written records - Miscellaneous - Southeast Asian conflicts, 1948-1975:] [Records of MAJ H.C. Ducker MC - Malaya and Vietnam] 28th Commonwealth Infantry Brigade [FARELF], Exercise CRYSTAL BALL, 15-18 Feb 1966 - General Instructions
Official Record AWM2022.1426.154 Southeast Asia (SEATO, FESR, ANZUK), 2 July 1955-14 March 1975AWM125 151/5 - [Written records - Miscellaneous - Southeast Asian conflicts, 1948-1975:] [Records of MAJ H.C. Ducker MC - Malaya and Vietnam] 28th Commonwealth Infantry Brigade [FARELF], Exercise CRYS