W. Shepherd
发表
W. T. Peria,
W. Shepherd,
1973
.
H. G. Hershey,
K. Leinfelder,
W. Shepherd,
1978,
The Angle orthodontist.
W. Shepherd,
W. D. McNeil,
1972
.
J. Casko,
W. Shepherd,
2009,
The Angle orthodontist.