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Licensing
- for works published by the Australian government more than 50 years ago. How long does Australian copyright last?

[1]. For published editions of works the duration is only 25 years from the end of the year of that publication.

And

[2]. Under the "Fair Dealing" provisions of the Australian Copyright Act, if you use copyright material for the purpose of research or study, you will not infringe copyright. Whether the use you intend is fair or not depends on all of the circumstances.

The Act deems a fair amount to copy as:

journals - 1 article per issue, or 2 or more articles per issue if those articles relate to the same subject matter. other published works - the greater of either 10% of the number of pages (or if published in an electronic format, 10% of the number of words) or one chapter from a book of 10 or more pages.

REF: COPYRIGHT ACT 1968 http://www.austlii.edu.au/au/legis/cth/consol_act/ca1968133/

National Library of Australia Canberra, ACT 2600 AUSTRALIA http://www.nla.gov.au/copiesdirect/help/copyright.html