Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.