Sandra in Sydney wrote, in part (quoting Wikipedia): In the 1950s and 1960s A. H. & A. W. Reed issued a number of bestsellers, including books by Barry Crump, and became New Zealand's foremost educational publisher.[5] In the late 1960s the firm was the largest publisher in Australasia[1] and changed its name to A. H. & A. W. Reed Ltd.[8] In the 1970s Reed had its head office in Wellington and branches in Auckland, Christchurch, Sydney and London.[9] The firm published many popular non-fiction books that "celebrated a distinctly New Zealand way of life",[1] including works in the fields of "back-country tales, books on sport, gardening, cooking and crafts" and illustrated books of "natural history and books of landscape photographs and painting".[5] Books on Maori topics were one of Reed's specialities.

A bit of an "ahem" here, not directed at anyone in particular.

One of the books published by Reed was the second edition of Song of a Young Country. Based on the above, it appears they did not attempt to retain it; the third edition is by Steele Roberts.