Farm tractors : trends in type, size, age and use /
Csorba, Julius J. 1924-
Farm tractors : trends in type, size, age and use / [by Julius J. Csorba]. - Washington, D.C. : Agricultural Research Service, U.S. Dept. of Agriculture, 1960. - 16 p. ; 26 cm. - Agriculture information bulletin ; no. 231 .
Cover title.
Bibliography: p. 16.
agr60000382
Farm tractors.
S21 / .A74 no. 231
1 / Ag84Ab no.231
Farm tractors : trends in type, size, age and use / [by Julius J. Csorba]. - Washington, D.C. : Agricultural Research Service, U.S. Dept. of Agriculture, 1960. - 16 p. ; 26 cm. - Agriculture information bulletin ; no. 231 .
Cover title.
Bibliography: p. 16.
agr60000382
Farm tractors.
S21 / .A74 no. 231
1 / Ag84Ab no.231