Understanding crop production /
Stoskopf, Neal C., 1934-
Understanding crop production / Neal C. Stoskopf. - Reston, Va. : Reston Pub. Co., c1981. - xiv, 433 p. : ill. ; 25 cm.
Understanding crop production / Neal C. Stoskopf. - Reston, Va. : Reston Pub. Co., c1981. - xiv, 433 p. : ill. ; 25 cm.