Dyfyniad APA

Emig, C. C., & Vargas, J. A. (1990). Glottidia audebarti (Broderip), (Brachiopoda, Lingulidae) from the Gulf of Nicoya, Costa Rica.

Dyfyniad Arddull Chicago

Emig, Christian C., y José A. Vargas. Glottidia Audebarti (Broderip), (Brachiopoda, Lingulidae) From the Gulf of Nicoya, Costa Rica. 1990.

Dyfyniad MLA

Emig, Christian C., y José A. Vargas. Glottidia Audebarti (Broderip), (Brachiopoda, Lingulidae) From the Gulf of Nicoya, Costa Rica. 1990.

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