Agricultural plants /
Langer, R. H. M. (Reinhart Hugo Michael), 1921 -
Agricultural plants / Reinhart Hugo Michael Langer and G. D. Hill. - 2nd ed. - Cambridge : Cambridge University Press, c1991. - xiii, 387p. : ill. ; 23 cm.
Includes bibliographical references and index.
0521405637
Crops.
Agricultural plants / Reinhart Hugo Michael Langer and G. D. Hill. - 2nd ed. - Cambridge : Cambridge University Press, c1991. - xiii, 387p. : ill. ; 23 cm.
Includes bibliographical references and index.
0521405637
Crops.