Dyfyniad APA

Pizarro Chacón, G., & Cordero Badilla, D. (2015). Pronunciation Difficulties for Costa Rican EFL Learners.

Dyfyniad Arddull Chicago

Pizarro Chacón, Ginneth, y Damaris Cordero Badilla. Pronunciation Difficulties for Costa Rican EFL Learners. 2015.

Dyfyniad MLA

Pizarro Chacón, Ginneth, y Damaris Cordero Badilla. Pronunciation Difficulties for Costa Rican EFL Learners. 2015.

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