Australian Bureau of Statistics2023-12-082023-12-080312-481911_011http://hdl.handle.net/1885/307945application/pdfen-AUCatalogues and GuidesPublications Issued by the Australian Bureau of Statistics, June 1981Publications Issued by the Australian Bureau of Statistics1981-062023-12-08This image is provided for research purposes only and must not be reproduced without the prior permission Australian National University.