Dyfyniad APA

Sternbach, J. (1988). Negotiating and contracting for professional engineering services. Transportation Research Board, National Research Council.

Dyfyniad Arddull Chicago

Sternbach, Jack. Negotiating and Contracting for Professional Engineering Services. Washington, D.C.: Transportation Research Board, National Research Council, 1988.

Dyfyniad MLA

Sternbach, Jack. Negotiating and Contracting for Professional Engineering Services. Transportation Research Board, National Research Council, 1988.

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