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STEVENSON, Dennis Wm. (ed.): The Biology, Structure and Systematics of the Cycadales. Proceedings of the Symposium CYCAD 87, Beaulieu-sur-Mer, France, April 17-22, 1987. 1990. (Mem. N.Y.Bot.Gdn., 57). 1 portr.210 p. gr8vo. Paper bd. (41833) 31.03
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