Audus, L. J. Plant growth substances/ by L. J. Audus. - 3rd ed. - London : L. Hill, , 1972- - v. illus. Bibliography: v. 1, p. 403-495. v. 1. Chemistry and physiology. ISBN: 0249440857 (v. 1) Subjects--Topical Terms: Plant regulators. Dewey Class. No.: 581.31 AUD/P