https://www.jstor.org/stable/3798975?seq=1#page_scan_tab_contents
Smith, M. C. 1968b. Red squirrel response to spruce cone failure in interior Alaska. Journal of Wildlife Management 32:305–316.
https://www.jstor.org/stable/3798975?seq=1#page_scan_tab_contents
Smith, M. C. 1968b. Red squirrel response to spruce cone failure in interior Alaska. Journal of Wildlife Management 32:305–316.