Patterns of widespread decline in North American bumble bees.

MLA

Cameron, Sydney A., et al. “Patterns of Widespread Decline in North American Bumble Bees.” Proceedings of the National Academy of Sciences of the United States of America, vol. 108, no. 2, Jan. 2011, pp. 662–67. EBSCOhost, https://doi.org/10.1073/pnas.1014743108.

APA

Cameron, S. A., Lozier, J. D., Strange, J. P., Koch, J. B., Cordes, N., Solter, L. F., & Griswol, T. L. (2011). Patterns of widespread decline in North American bumble bees. Proceedings of the National Academy of Sciences of the United States of America, 108(2), 662–667. https://doi.org/10.1073/pnas.1014743108

Chicago

Cameron, Sydney A., Jeffrey D. Lozier, James P. Strange, Jonathan B. Koch, Nils Cordes, Leellen F. Solter, and Terry L. Griswol. 2011. “Patterns of Widespread Decline in North American Bumble Bees.” Proceedings of the National Academy of Sciences of the United States of America 108 (2): 662–67. doi:10.1073/pnas.1014743108.