Ecology Group Progress Report.
Dunaway and White (Editors).
NVO-153, pp. 43-95.
Sampson, R. J.
1973.
“User's Manual for the SURFACE II Graphics
System," K.0.X. Project, Geological Research Section, Kansas
Geological Survey, University of Kansas, Lawrence, Kansas.
Snedecor,
G. W.,
and W.
G.
Cochran.
1967.
The Iowa State University Press, Ames,
115
Lowa.
Statistical Methods.