Ahlgren, Gilbert H. 1913- Forage crops. - New York, McGraw-Hill, 1949. - x, 418 p. illus. 24 cm. - McGraw-Hill publications in the agricultural sciences . Includes bibliography. LCCN: agr50000015 Subjects--Topical Terms: Forage plants LC Class. No.: SB208.U5 / A7