To search for Defence Library material go to Te Puna search (National Library of New Zealand) at https://tepuna.on.worldcat.org/discovery
Although members of the public may not borrow from the collection, most titles are available via a local or academic library by inter-library loan.
The Oxford Companion to New Zealand Military History, edited by Ian McGibbon. Auckland : OUP, 2000. This authoritative and comprehensive encyclopaedia covers subjects ranging from Aircraft to Z Special Unit. Each entry is written by an expert in the field and often includes a bibliography.
The War Histories are a series of almost 50 volumes covering individual campaigns and units from the time of the NZ Wars to the Korean War. The War Histories are held at most public libraries and are also available online at http://nzetc.victoria.ac.nz