Sporne, K.R The Morphology of Angiosperms: The structure and evolution of flowering plants / K.R. Sporne. - 27th rev. ed. - New Delhi: B.I. Publications, 1974. - 207p.: ill.; 21cm. Subjects--Topical Terms: Botany - Morphology Angiosperms - Morphology. Dewey Class. No.: 583.041 S65M