J G MacGregor
发表
S N Kariyawasam,
D M Rogowsky,
J G MacGregor,
1997
.
J M Hanson,
J G MacGregor,
1969
.
J E Breen,
J G MacGregor,
E O Prrang,
1972
.
J G MacGregor,
1979
.
F. M. Bartlett,
F M Bartlett,
J G MacGregor,
1994
.
J G MacGregor,
A O Aghayere,
1990
.
F. M. Bartlett,
F M Bartlett,
J G MacGregor,
1994
.