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1by Pringle, Laurence, 1935-Subjects: “...Desert ecology North America Juvenile literature....”
Published 1977
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3
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4Published 2004Subjects: “...Lake trout Ecology....”
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6
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7
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8Published 2008Subjects: “...Grassland ecology North America....”
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9by Staub, Frank J.Subjects: “...Prairie ecology North America Juvenile literature....”
Published 1994
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10by Kirby, Ronald E.Subjects: “...Fire ecology North America Bibliography....”
Published 1988
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12
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13by Shelford, Victor E. (Victor Ernest), 1877-Subjects: “...Ecology North America....”
Published 1963
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14
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15Published 2008Subjects: “...Arid regions ecology North America Congresses....”
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17
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18
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19by Carpenter, John R. (John Richard), 1938-Subjects: “...Grassland ecology North America....”
Published 1940
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20Published 1994Subjects: “...Stream ecology North America....”
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