TY - BOOK AU - Steneker,G.A. AU - Jarvis,J.M. TI - THINNING IN TREMBLING ASPEN STANDS MANITOBA AND SASKATCHEWAN PY - 1966/// PB - EX.?, 1966, pp.5-27, 10 Fig. 1c. 5 App. DEP. OF FOR. PUBLICATION N° 1140. ER -