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Hanson Snortum, Paul E. 1953-, Mauricio 1980- Fernández Otárola, Jorge Arturo 1959- Lobo Segura, Gordon W. Frankie, and Rollin E. Coville. Bees of Costa Rica. Ithaca: Comstock Publishing Associates, an imprint of Cornell University Press, 2023.

Hanson Snortum, Paul E. 1953-, et al. Bees of Costa Rica. Ithaca: Comstock Publishing Associates, an imprint of Cornell University Press, 2023.