Hartley, R. D. Chemical analysis and breeding value of male hops (Humuus Lupulus L. ) / by R. D. Hartley and R. A. Neve - London: Wye College , 1968. - 156p. : tabs. - Reprint ; no.380 . Subjects--Topical Terms: Hops --Analysis.------ Dewey Class. No.: PS 630.7114223 W942 No.380