Dyfyniad APA

Howard-Williams, D., Tomalin, M., & Watcyn-Jones, P. Instant lessons 1. Elementary.

Dyfyniad Arddull Chicago

Howard-Williams, Deirdre, Mary Tomalin, and Peter Watcyn-Jones. Instant Lessons 1. Elementary.

Dyfyniad MLA

Howard-Williams, Deirdre, et al. Instant Lessons 1. Elementary.

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