Valerie Illingworth
发表
Robert E. W. Maddison,
Valerie Illingworth,
1980
.
Valerie Illingworth,
1979
.
Valerie Illingworth,
1982
.
I. C. Pyle,
Valerie Illingworth,
Edward L. Glaser,
1989
.
Valerie Illingworth,
V. Illingworth,
1991
.