General Bibliography
- Sotheby's - 1967
- Sothebys - 1968
- Sotheby's - 1968 (II)
- Sotheby's - 1968 (III)
- Sotheby's - 1968 (IV)
- Sotheby's - 1969
- Sotheby's - 1969 (II)
- Sotheby's - 1969 (III)
- Sotheby's - 1970
- Sotheby's - 1970 (II)
- Sotheby's - 1970 (III)
- Sotheby's - 1970 (IV)
- Sotheby's - 1971
- Sotheby's - 1971 (II)
- Sotheby's - 1971 (III)
- Sotheby's - 1972
- Sotheby's - 1972 (II)
- Sotheby's - 1972 (III)
- Sotheby's - 1972 (IV)
- Sotheby's - 1973