Textbook in the Natura series for Baden-Württemberg, first part of the BW edition for Gymnasien. Features a blue-purple cover with a photographic image (owl) and a green spine with BW edition labeling. Authors/editors listed on the title pages include Claudia Dreher, Roland Frank, Gert Haala, Jürgen Schweizer, and Günther Wichert. Published by Ernst Klett Verlag (Stuttgart/Düsseldorf/Leipzig).
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