F. Willett
发表
G. C. Palmer,
E. F. Cregan,
A. Borrelli,
1995,
Annals of the New York Academy of Sciences.
F. Willett,
1976
.
S. Fleming,
F. Willett,
1976
.
F. Willett,
1971,
The Journal of African History.
B. Fagan,
F. Willett,
1967,
The Journal of African History.
F. Willett,
1967
.
F. Willett,
1966
.
F. Willett,
1965
.
E. Sayre,
F. Willett,
2006
.
F. Willett,
K. C. Murray,
1958
.
F. Willett,
1971
.
F. Willett,
1978
.
F. Willett,
1960,
The Journal of African History.
F. Willett,
E. Eyo,
Rollyn O. Krichbaum,
1980
.
F. Willett,
1962,
Africa.
F. Willett,
1986
.
F. Willett,
1960
.
F. Willett,
O. Werner,
1975
.
E. Sayre,
R. Vocke,
E. C. Joel,
1995
.
W. R. Stanton,
F. Willett,
1963
.
B. Torsney,
F. Willett,
M. Ritchie,
1994
.
F. Willett,
1988
.
F. Willett,
1973
.
F. Willett,
1964
.
F. Willett,
1959
.
Creighton Gabel,
F. Willett,
N. Bennett,
1967
.
F. Willett,
Herbert M. Cole,
Anita G. Glaze,
1982
.