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By Bergerud, Marly.
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0471870560

By Bergerud, Marly.
New York Wiley 1981 .
xvii, 237 p. , Includes index. 28 cm..
0471060100

By Bergerud, Marly.
New York Wiley 1984 .
xix, 313 p., [4] p. of plates , Includes index.

By Gonzalez, Jean.
Boston, Mass. Kent Pub. Co. 1980 .
209 p. 28 cm..
0534008119