APA aipamena

Valverde, J., Hanson, P., & Carpenter, J. (2019). Keys to the Costa Rican species of paper wasps (Hymenoptera: Vespidae: Polistinae).

Chicago Style aipamena

Valverde, J.-Pablo, Paul Hanson, y James  Carpenter. Keys to the Costa Rican Species of Paper Wasps (Hymenoptera: Vespidae: Polistinae). 2019.

MLA aipamena

Valverde, J.-Pablo, Paul Hanson, y James  Carpenter. Keys to the Costa Rican Species of Paper Wasps (Hymenoptera: Vespidae: Polistinae). 2019.