World Survey of Phosphate Deposits, The British Sulphur Corporation Limited, 1971 Unit ID: 31 Date: 1971
World Tonight' Blanche D'Alpuget. VHS for Clive. 5/03/1992, 5/03/1992 Shelf-Tall OH1-19-036 Unit ID: NLA.MS-SAV014728 Date: 5/03/1992