Horn, S. P., Johanson, E. N., Haberyan, K. A., Boehm, M. S., Johanson, J. L., & Sánchez P., M. (2018). Initial limnological observations at five small lakes in southern Pacific Costa Rica. San José, Costa Rica: EUNED.

Horn, Sally P., Erik N. Johanson, Kurt A. Haberyan, Mathew S. Boehm, Jessie L. Johanson, and Maureen Sánchez P. Initial Limnological Observations At Five Small Lakes in Southern Pacific Costa Rica. San José, Costa Rica: EUNED, 2018.

Horn, Sally P., et al. Initial Limnological Observations At Five Small Lakes in Southern Pacific Costa Rica. San José, Costa Rica: EUNED, 2018.