Seasonal march of the climatic conditions of a greenhouse, as related to plant growth /
Johnston, Earl S.
Seasonal march of the climatic conditions of a greenhouse, as related to plant growth / by Earl S. Johnston - Baltimore : [s.n.], 1917 - 41-98 p. : ill. ; 25 cm - Bulletin. University of Maryland, Agricultural Experiment Station ; n. 245 .
Seasonal march of the climatic conditions of a greenhouse, as related to plant growth / by Earl S. Johnston - Baltimore : [s.n.], 1917 - 41-98 p. : ill. ; 25 cm - Bulletin. University of Maryland, Agricultural Experiment Station ; n. 245 .