"robertson, c a. "
an introduction to agricultural production economics and far: m management/ c.a. robertson - 1 ed. - india : mcgraw-hill 1971. - "vii, 140p.; 22 cm."
includes bibliography
653. 159 681 rob
an introduction to agricultural production economics and far: m management/ c.a. robertson - 1 ed. - india : mcgraw-hill 1971. - "vii, 140p.; 22 cm."
includes bibliography
653. 159 681 rob