It's a new online internet service. It give access to the 3 main library catalogue systems in Australia. Including at academic libraries system, that about 25 or 30 years old.
Note that the site is part of the Australian National Library's domain. You don't get anymore credible than that. They get a copy of all books published in the country, like the Library of Congress (US) and the Bodleian Library (Oxford, UK).
Had a look today. Did a search of one of my pet topics, "Stirling Engine". Found that the ADFA library (pass ADFA on the way to/from work) has a copy of a book I'm interested in buying, maybe. Must get an inter-library loan.
Record Id: 13361268 (Australian Library Collections: Subjects)
Author: Organ, Allan J.
Title: The regenerator and the Stirling engine / by Allan J. Organ.
Published: London : Mechanical Engineering Publications, 1997.
Description: xlii, 623 p.,  folded leaves : ill., plans ; 25 cm.
ISBN: 1860580106 :
LC Call Number: TJ765
Dewey Number: 621.42
Notes: Includes indexes.
Subjects: Stirling engines -- Design and construction.
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Libraries that have this item:
Academy Library, University of NSW@ADFA (ADFA) 222453 main TJ 765 .O73 1997
James Cook University. Townsville Campus (QJCU) 546471 Held
Murdoch University. Murdoch University Library (WMDU) .b14604772 621.42 ORG 1997
University of Melbourne. The University Library (VU) held
University of Queensland Library. Dorothy Hill Physical Sciences and Engineering Library (QU:PSE) b19944317 TJ765 .O73 1997
University of Western Sydney. Penrith Campus, Allen Library (NUWS:A) 385980 621.42 O1