Bickerman-Martens, K.; Swartz, B.; Butler, R.; Drummond, F. Documenting the Diversity, Distribution, and Status of Maine Bumble Bees: The Maine Bumble Bee Atlas and Citizen Scientists. MPR 2017, 26 (2), 43-49. https://doi.org/https://doi.org/10.53558/TMNE5631.