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AFR Africa --- Africa --- photographs --- vegetation

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DEN Dendrology & Forestry --- Angiospermae = Angiosperms --- Gymnospermae = Gymnosperms --- Northern America --- dendrology --- detail photographs --- drawings --- habit photographs --- keys --- morphology --- taxa descriptions --- trees

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Photography --- aerial photographs --- Medieval [European] --- luchtfoto's --- middeleeuwen --- anno 500-1499 --- England

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AFN North Africa --- North Africa --- Sahara --- biology --- drawings --- dry areas --- ecology --- flora --- keys --- mesology --- photographs --- plant communities

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AFC Central Africa --- Central Africa --- Congo ( = Belgian Congo = Congo belge = République démocratique du Congo = Democratic Republic of Congo = Zaïre) --- coloured photographs --- ethnology --- frontispiece