Spicer R A Ed. Proceeding on systematic and taxonomic approaches in palaeobotany - Oxford Clarendon Press 1986 - x, 321p. cm. - Systematics association special, 3 . Standard No.: 50168 Source: Textual Subjects--Topical Terms: PaleobotanyBotany Dewey Class. No.: I:8p1,N85, M6