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1
المؤلفون: Scott C. Bourcy, Ralph E. Weeks
المصدر: Tailings and Mine Waste 2000 ISBN: 9781003078579
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2
المؤلفون: Michael L. Rucker, Kenneth C. Fergason, Michael D. Greenslade, Bibhuti B. Panda, Ralph E. Weeks
المصدر: GeoCongress 2008.
مصطلحات موضوعية: Remote sensing (archaeology), Environmental science, Remote sensing, Characterization (materials science)
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3
المؤلفون: Ralph E. Weeks
المصدر: The Prison Journal. 22:185-191
مصطلحات موضوعية: Law, Sociology, Criminology, Social Sciences (miscellaneous)