TY  - BOOK
AU  - Logan, K.T. 
AU  - Pollard, D.F.W.
TI  - Growth Acceleration of tree seedlings in controlled environments at petawawa
U1  - P 634.9982 21st ed.
PY  - 1976///
CY  - Ontario
PB  - P 634.9982
KW  - Tree seedlings
KW  - Green house
KW  - Picea glauca,
KW  - Picea mariana
ER  -