LDGSL/1107/A/1/5
England and Cambridge University, 1968
Jun-Dec 1968
LDGSL/1107/A/1/9
Cambridge University, 1969
Sep-Dec 1969
LDGSL/1107/A/1/10
General scientific correspondence, 1970
1970
LDGSL/1107/A/1/17
General correspondence, 1977
Jan-Mar 1977