Dyfyniad APA

Bird, J., Newby, B., & Timings, R. (1996). Engineering GNVQ: Intermediate. Butterworth-Heinemann.

Dyfyniad Arddull Chicago

Bird, John, Bruce Newby, and Roger Timings. Engineering GNVQ: Intermediate. Oxford: Butterworth-Heinemann, 1996.

Dyfyniad MLA

Bird, John, et al. Engineering GNVQ: Intermediate. Butterworth-Heinemann, 1996.

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