by Ott, Donald G | .
by Szwarc, Michael Ed | .
by Sawicki, Eugene | .
by Hilditch, T.P | .
by Jurnak , Frances A | .
by Parker , Gary | .
by Beatrice Paolucci | .
by Paul A. Colinvaux | .
by R.Lal | .
by Alexender S. Podolsky | .
by Nicholas Polunin | .
by C.C. Delwiche | .
by Jerome O. Nriagn | .
by Thomas C. Cheng | .
by R.M. Nisbet | W.S.C. Gurney.
by R.H. Pain | B.J. Smith.
by K.A. Fox | .
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