Dyfyniad APA
Forest Stewardship Council, Spiller, N., Castle, H., Ellerby, C., & Gongde, E. (2012). Drawing architecture. John Wiley & Sons.
Dyfyniad Arddull Chicago
Forest Stewardship Council, Neil Spiller, Helen Castle, Caroline Ellerby, and Elizabeth Gongde. Drawing Architecture. London: John Wiley & Sons, 2012.
Dyfyniad MLA
Forest Stewardship Council, et al. Drawing Architecture. John Wiley & Sons, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.