Correlation of the North American Silurian rocks/

Geahča maid

• Correlation of the African Silurian rocks/
  Dahkki: Berry, William B. N., et al.
  Almmustuhtton: (1973)
• Correlation of the Southeast Asian and Near Eastern Silurian rocks/
  Dahkki: Berry, William B. N.
  Almmustuhtton: (1972)
• Correlation of the silurian rocks of the British Isles/
  Dahkki: 319167 Ziegler, A. M., et al.
  Almmustuhtton: (1974)
• Correlation of the South American Silurian rocks/
  Dahkki: Berry, William B. N., et al.
  Almmustuhtton: (1972)
• Correlation chart of the silurian rocks of the British Isles / [carta]
  Almmustuhtton: (1974)