SPATIAL ASPECTS OF SWEET FERN RUST DISEASE IN NORTHERN ONTARIO JACK PINE-SWEETFERN STANDSGROSS HL; PATTON RF; EK AR et al.1980; CAN. J. FOR. RES.; CAN; DA. 1980; VOL. 10; NO 2; PP. 199-208; ABS. FRE; BIBL. 13 REF.; 5 ILL.Article

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