Dyfyniad APA

Budd, L., Griggs, S., & Howarth, D. (2013). Sustainable aviation futures (First edition.). Emerald Group Publishing Limited.

Dyfyniad Arddull Chicago

Budd, Lucy, Steven Griggs, and David Howarth. Sustainable Aviation Futures. First edition. United Kingdom: Emerald Group Publishing Limited, 2013.

Dyfyniad MLA

Budd, Lucy, et al. Sustainable Aviation Futures. First edition. Emerald Group Publishing Limited, 2013.

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