Smith, Hugh Fairfield, 1904- The variability of plant density in fields of wheat and its effect on yield, by H. Fairfield Smith. - Melbourne, H.J. Green, government printer, 1937. - 28 p. diagrs. "Literature cited": p. 23-24. LCCN: agr38000447 Subjects--Topical Terms: Wheat. LC Class. No.: SB191.W5 / S634