982 resultados para graded index profile
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Explanation of each plate is printed on the back of the preceding plate.
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Final report, Pittman-Robertson Project 28-R, Job I-C.
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Supplement for 1943/48 issued as Dept. of Agriculture, Library lis no. 48; for 1949/53- as Extension Service circular. L. Crile, compiler.
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Cover title
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Mode of access: Internet.
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Mode of access: Internet.
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Prepared by M. Frances Marshall and Gladys B. Wash.
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Mode of access: Internet.
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Bibliography: p. 127-135.
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Mode of access: Internet.
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Cover title.
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Title from cover.
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Description based on: 1980.
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Vol. for 1967 called v. 67 to coincide with date.
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Mode of access: Internet.