David Chard
发表
Russell Gersten,
R. Gersten,
D. Chard,
1999
.
Anthony S. Bryk,
Larry V. Hedges,
Susanna Loeb,
2014
.
David Chard,
J. David Cooper,
Nancy D. Kiger,
2006
.
Nancy Mather,
Shirley V. Dickson,
B. Podhajski,
2001
.