1. Response of two western Canadian conifers to simulated acidic precipitation
2. Anon, 1979 : Analytical methods manual (of the) Inland Waters Directorate, Water Quality Branch. Environment Canada, Ottawa, Ont.
3. EROSION OF WAXES FROM LEAF SURFACES BY SIMULATED RAIN
4. E. V. Bakuzis, and H. L. Hansen, 1965 : Balsam fir, a monographic review . Univ. of Minn. Press, Minneapolis. 445 pp.
5. J. S. Boyce, 1961 : Forest Pathology . 3rd Ed . McGraw-Hill Book Co., Toronto, Ont. 572 pp.