Dyfyniad APA

Petroski, H. (2012). To forgive design: Understanding failure. Belknap Press of Harvard University Press.

Dyfyniad Arddull Chicago

Petroski, Henry. To Forgive Design: Understanding Failure. Cambridge, Mass.: Belknap Press of Harvard University Press, 2012.

Dyfyniad MLA

Petroski, Henry. To Forgive Design: Understanding Failure. Belknap Press of Harvard University Press, 2012.

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