Dyfyniad APA

Greenbaum, S., & Sidney Greenbaum and Gerald Nelson. (2002). An introduction to English grammar. England: Pearson education.

Dyfyniad Arddull Chicago

Greenbaum, Sidney, và Sidney Greenbaum and Gerald Nelson. An Introduction to English Grammar. England: Pearson education, 2002.

Dyfyniad MLA

Greenbaum, Sidney, và Sidney Greenbaum and Gerald Nelson. An Introduction to English Grammar. England: Pearson education, 2002.

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