„Klettafura“: Munur á milli breytinga

 

==Viðbótarlesning==

* {{cite book | last1 = Chase| first1 = J. Smeaton| authorlink1 = J. Smeaton Chase| title = Cone-bearing Trees of the California Mountains | location = Chicago | publisher = [[A. C. McClurg & Co.]] | pages = 99 | isbn = |year=1911 | oclc = 3477527|lccn=11004975|quote=}}

* {{cite book|editor1-last=Keane|editor1-first=Robert E.|editor2-last=Tomback|editor2-first=Diana F.|editor3-last=Murray|editor3-first=Michael P.|display-editors = 3 |editor4-last=Smith|editor4-first=Cyndi M.|year=2011|url=http://www.fs.fed.us/rm/pubs/rmrs_p063.html|title=The future of high-elevation, five-needle white pines in Western North America: Proceedings of the High Five Symposium|date=28–30 June 2010|id=Proceedings RMRS-P-63|location=Fort Collins, CO|publisher=U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station}}

*{{cite book|last=Schwandt|first=J.|year=2006|title=Whitebark pine in peril: A case for restoration|publisher=USDA, Forest Service, Northern Region|id=R1-06-28}}

*{{cite book|editor1-last=Tomback|editor1-first=D.F.|editor2-last=Arno|editor2-first=S.F.|editor3-first=R.E.|editor3-last=Keane|year=2001|title=Whitebark pine communities: ecology and restoration|publisher=Island Press|location=Washington, D.C.}}

 

==Ytri tenglar==