"It's very important that all those with influence on the quality of the lake do as much as we can to make Wairarapa Moana the best it can be so it remains intrinsically important to our district."
Lake Wairarapa, Lake Onoke and the surrounding wetlands, collectively Wairarapa Moana, are in the top 10 most polluted waterways in New Zealand.
Greater Wellington chairwoman Fran Wilde said restoration work, helped this year by a $1 million boost from the Fresh Start for Freshwater fund, would take a long time and the book demonstrated the long-term benefits of collaboration.
The dispossession and ill-treatment of Maori following the "gifting" of the land from iwi to the Crown may come as a shock to some Pakeha, said historian Gareth Winter.
Wairarapa Moana Incorporation director Arawhetu Gray said it was an amazing gift to have the history of division and dissent compiled in the book.
"The relocation and separation as a people from the lake and from each other and that needs to be acknowledged. It's not about grievance, it's about acceptance of our history ..." Ms Gray said.
Green Party co-leader Metiria Turei said the lake was the heart of the region. Acknowledging the pain and hurt caused to Maori was important for the future of the lake's peoples, to ensure it doesn't happen again.