973 resultados para Illinois. Bureau of Land.
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Mode of access: Internet.
A classification of the larvae and puparia of the Syrphidae of Illinois, exclusive of aquatic forms.
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Issued also as thesis (PH.D.) University of Illinois.
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Mode of access: Internet.
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"June 1956."
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Includes bibliographical references (p. 89-92).
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Includes bibliographical references (p. 10).
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Mode of access: Internet.
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Mode of access: Internet.
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Issued in cooperation with various state geological agencies.
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Mode of access: Internet.
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"Conducted ... under contract with the Office of Information, USDA."
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Includes bibliographical references (p. 87-92).
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"Federal Water Pollution Control Administration, Kansas City, Missouri."
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Prepared by M. Frances Marshall and Gladys B. Wash.
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Mode of access: Internet.