Permian

1976

• The Carboniferous and Permian geology of Greenland

  Greenland Stratigraphic Series, Carboniferous-Permian Subseries

  Author(s): Wright, N.J.R.

  Report Number: CASP.arc.30

  1976-01

1975

• The Billefjorden Group of Central and Eastern Spitsbergen

  Svalbard Stratigraphic Series, Carboniferous and Permian Subseries

  Author(s): Wright, N.J.R.

  Report Number: CASP.arc.6

  1975-07