Dyfyniad APA

Rounds, J. L., & Segner, R. O. (2011). Construction supervision. John Wiley & Sons.

Dyfyniad Arddull Chicago

Rounds, Jerald L., and Robert O. Segner. Construction Supervision. Hoboken, N.J.: John Wiley & Sons, 2011.

Dyfyniad MLA

Rounds, Jerald L., and Robert O. Segner. Construction Supervision. John Wiley & Sons, 2011.

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