Dyfyniad APA

DION, T. R., & DION, T. R. (1993). Land Development For Civil Engineers Thomas R. Dion. John Wiley & Sons.

Dyfyniad Arddull Chicago

DION, Thomas R., and Thomas R. DION. Land Development For Civil Engineers Thomas R. Dion. John Wiley & Sons, 1993.

Dyfyniad MLA

DION, Thomas R., and Thomas R. DION. Land Development For Civil Engineers Thomas R. Dion. John Wiley & Sons, 1993.

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