Phipps, Lloyd J. Handbook on teaching vocational agriculture / Lloyd J. Phipps edited by Glen Charles Cook. - 6th ed. - Illinois : Interstate danville, c 1959. - 964 p. : ill. ; 24 cm. Includes index. 340 340 Subjects--Topical Terms: Agriculture--Study and teaching. Dewey Class. No.: 630.702 / P557h