"Abies balsamea". North American Ethnobotany DB. Retrieved 21 August 2016.
conifers.org
"Abies balsamea". The Gymnosperm Database. Retrieved 8 August 2019.
ct.gov
"Connecticut's Endangered, Threatened and Special Concern Species 2015". State of Connecticut Department of Energy and Environmental Protection Bureau of Natural Resources. Retrieved 17 January 2018. (Note: This list is newer than the one used by plants.usda.gov and is more up-to-date.)
USDA, NRCS (n.d.). "Abies balsamea (balsam fir)". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 15 June 2022.