Hay and forage harvesting : fundamentals of machine operation, Instructor's guide / edited by Louis R. Hathaway. - 2nd. - Illinois : Deere and Co, 1984. - iv, 15 p. : ill. ; 28 cm. - Fundamentals of machine operations (FMOS) . Open. ISBN: Subjects--Topical Terms: Agricultural machinery--Haying equipment.Agricultural machinery--Forage harvesting machinery--Manuals.Hay--Harvesting--Haying equipment--Manuals.Forage plants--Harvesting--Machinery.