Roberts, Lorin Watson. Cytodifferentiation in plants : xylogenesis as a model system / Lorin W. Roberts ; foreword by John G. Torrey. - Cambridge ; New York : Cambridge University Press, c1976. - xiii, 160 p. : ill. ; 23 cm. - Developmental and cell biology series ; 2 . Bibliography: p. [121]-148. and index. ISBN: 0521208041 : Subjects--Topical Terms: Plant cell differentiation.Xylem. Dewey Class. No.: 581.8761 / ROC 1976