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1كتاب
المؤلفون: Meine, Curt.
مصطلحات موضوعية: Naturalists -- Wisconsin -- Biography., Naturalists -- United States -- Biography., Ecologists -- Wisconsin -- Biography., Ecologists -- United States -- Biography., Wildlife managers -- Wisconsin -- Biography., Wildlife managers -- United States -- Biography., Foresters -- Wisconsin -- Biography., Foresters -- United States -- Biography., Bossen, Wilde dieren, Biologen, Ecologie, Biography.
Subject Person: Leopold, Aldo, 1886-1948.