Variability of germination in digger pine in California.
Variability of germination in digger pine in California.
- 1971.
- s. 4 : rys. , tab. ; 27 cm.
- No. PSW-248 .
- Research Note. Pacific Southwest Forest and Range Experiment Station No. PSW-248 .
bibliogr. = Res. Note Pac. Southw. For. Range Exper. Exper. St. N.
bibliogr. = Res. Note Pac. Southw. For. Range Exper. Exper. St. N.