First published in Conifers World: 647 (2009)
- Adams, R.P., Earle, C.J. & Thornburg, D. (2011). Taxonomy of infraspecific taxa of Abies lasiocarpa: leaf essential oils and DNA of Abies lasiocarpa, var. bifolia and var. arizonica Phytologia 93: 73-87.
The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
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