http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
F.J. Tindall ; compiled from surveys by H.S. Gibbs [and others].
"To accompany bulletin number 3 'A genetic classification of New Zealand soils' by N.H. Taylor."
Genetic classification of New Zealand soils