Xie, C-Y., W.D. Johnstone, and C.C. Ying. 1995. Spacing and Provenance effects on the performance of shore pine (Pinus contorta var contorta): 20 years results. Can. J. For. Res. 25(4):567-576.
Johnstone, W.D. and J.P. Pollack. 1990. The influence of espacement on the growth and development of a lodgepole pine plantation. Can. J. For. Res. 20(10):1631-1639.
Johnstone, W.D. 1983. Natural lodgepole pine in west-central Alberta. Part II: Juvenile spacing. In Lodgepole pine - regeneration and management. Symp. Proc. M. Murray (editor). USDA For. Serv., Gen. Tech. Rep. PNW-157, Portland, Oreg,. pp. 8-14.
Johnstone, W.D. and J.L. Keays. 1974. Kraft pulp from the components of lodgepole pine. In IUFRO biomass studies. Symp. Proc., Univ. Maine, Life Sci. Agr. Res. Sta. Orono. Maine. pp. 477-494.
1971:
Johnstone, W.D. 1971. Total standing crop and tree component distributions in three stands of 100-year-old lodgepole pine. In Forest Biomass Studies. Symp. Proc., Univ. Maine, Life Sci. Agr. Res. Sta., Orono, Maine. Misc. Pub. 132., pp.81-89.