- Arts and Crafts of the Cook Islands
- Documents Relating to New Zealand's Participation in the Second World War 1939–45: Volume III
- 151 — The Prime Minister of Australia to the Secretary of State for Dominion Affairs2
- 167 — The New Zealand Minister, Washington, to the Prime Minister
- 168 — The New Zealand Minister, Washington, to the Prime Minister
- 13 March 1942
- 268 — The Secretary of State for Dominion Affairs to the Prime Minister of New Zealand2
- 276 — The Prime Minister to the New Zealand Minister, Washington
- Part I. general
- Part II. navy
- Part IV. air
- 333 — The Prime Minister of New Zealand to the Secretary of State for Dominion Affairs1
- Explorers of the Pacific: European and American Discoveries in Polynesia
- Polynesian Researches
- The New Zealand Dental Services
- The Pacific
- The Royal New Zealand Navy
For several reasons, including lack of resource and inherent ambiguity, not all names in the NZETC are marked-up. This means that finding all references to a topic often involves searching. Search for Tongatabu as: "Tongatabu". Additional references are often found by searching for just the main name of the topic (the surname in the case of people).
The following collections may have holdings relevant to "Tongatabu":
- Dictionary of New Zealand Biography, which has entries for many prominent New Zealanders.
- Archives New Zealand, which has collections of maps, plans and posters; immigration passenger lists; and probate records.
- National Library of New Zealand, which has extensive collections of published material.
- Auckland War Memorial Museum, which has extensive holdings on the Auckland region and New Zealand military history.
- Museum of New Zealand Te Papa Tongarewa, which has strong holdings in Tāonga Māori, biological holotypes and New Zealand art.
- nzhistory.net.nz, from the History Group of the Ministry for Culture and Heritage.