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23by The John Muir Center for Environmental Studies“...Canada...”
Published 2007
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24by The John Muir Center for Environmental Studies“...Canada...”
Published 2007
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26by Ebert, David A., White, William T., Goldman, Kenneth J., Compagno, Leonard J. V., Daly, Toby S., Engel, -, Ward, Robert D.“...Canada...”
Published 2010
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34by University of Texas Institute of Texan Cultures at San Antonio“...Canada...”
Published 1974
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37by University of Texas Institute of Texan Cultures at San Antonio“...Canada...”
Published 1988
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