Richey, J. E. (1970). Scotland: The Tertiary volcanic districts (3. ed., 4. impr.). His Majesty's Stationery Office.
Chicago-Zitierstil (17. Ausg.)Richey, James Ernest. Scotland: The Tertiary Volcanic Districts. 3. ed., 4. impr. Edinburgh: His Majesty's Stationery Office, 1970.
MLA-Zitierstil (9. Ausg.)Richey, James Ernest. Scotland: The Tertiary Volcanic Districts. 3. ed., 4. impr. His Majesty's Stationery Office, 1970.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.