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Trace Substances in Environmental Health
by
Delbert D. Hemphill, C. Richard Cothern
Science Reviews Ltd., May 1991
Paperback
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Trace Substances, Volume XXIII
by
Delbert D. Hemphill, C. Richard Cothern
CRC Press, January 1, 1990
Paperback
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Trace Substances in Environmental Health-XIX
by
Delbert D. Hemphill
Univ of Missouri Extension Pubns, March 1986
Paperback
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Trace Substances in Environmental Health
by
Delbert D. Hemphill
Univ of Missouri Extension Pubns, March 1984
Paperback
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Seedless table grapes for the Willamette Valley
by
Delbert D. Hemphill
Agricultural Experiment Station, Oregon State University, 1992
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Commercial vegetable production guides
by
Delbert D. Hemphill
College of Agricultural Sciences, Oregon State University, 1999
[electronic resource].
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North Willamette Agricultural Experiment Station vegetable research - 1978
by
Delbert D. Hemphill
Agricultural Experiment Station, Oregon State University, 1979
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Overwintering onions and other alliums in the Willamette Valley
by
Delbert D. Hemphill
Agricultural Experiment Station, Oregon State University, 1987
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Overwintering cole crops and spinach in the Willamette Valley
by
Delbert D. Hemphill
Agricultural Experiment Station, Oregon State University, 1986
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