R. Beecher
发表
A. Guay,
D. L. Maxwell,
R. Beecher,
1978,
The Angle orthodontist.
R. Corruccini,
R. Beecher,
2009,
The Angle orthodontist.
Rona Alexander,
R. Beecher,
2004
.
R. Beecher,
1977,
American journal of physical anthropology.
R. Beecher,
1979,
Journal of morphology.
R. Beecher,
1983,
International Journal of Primatology.
R. Corruccini,
R. Beecher,
1982,
Science.
R. Corruccini,
R. Beecher,
R S Corruccini,
1984,
Journal of craniofacial genetics and developmental biology.
Charles B. Davis,
Robert M. Beecher,
R. Beecher,
1988
.
R. Corruccini,
R. Beecher,
M. Freeman,
1983,
Journal of craniofacial genetics and developmental biology.
R. Corruccini,
R. Beecher,
1981,
Journal of dental research.
Eberhardt Privitzer,
Robert M. Beecher,
Jeffrey J. Settecerri,
1986
.