APA citiranje

Ruiz, A. (1959). Notes on Costa Rican Opalinids. I. Opalina moreletei Metcalf.

Citación estilo Chicago

Ruiz, Armando. Notes On Costa Rican Opalinids. I. Opalina Moreletei Metcalf. 1959.

MLA citiranje

Ruiz, Armando. Notes On Costa Rican Opalinids. I. Opalina Moreletei Metcalf. 1959.

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