Date of planting, length of growing season, vine killing, date of harvesting ---
Cunningham, C.E.
Date of planting, length of growing season, vine killing, date of harvesting --- - Orono 1959 - 31 p. - Maine Agricultural Experimentriment .
Date of planting, length of growing season, vine killing, date of harvesting --- - Orono 1959 - 31 p. - Maine Agricultural Experimentriment .