Dyfyniad APA

National Center for Construction Education and Research (U.S.). (2009). Construction technology: Trainee guide (3rd ed.). Pearson/Prentice-Hall, Inc.

Dyfyniad Arddull Chicago

National Center for Construction Education and Research (U.S.). Construction Technology: Trainee Guide. 3rd ed. Upple Saddle River, N.J: Pearson/Prentice-Hall, Inc, 2009.

Dyfyniad MLA

National Center for Construction Education and Research (U.S.). Construction Technology: Trainee Guide. 3rd ed. Pearson/Prentice-Hall, Inc, 2009.

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