Dyfyniad APA

Stubbs, P. C., Tyson, W. J., & Dalvi, Q. (1980). Transport economics. G. Allen & Unwin.

Dyfyniad Arddull Chicago

Stubbs, P. C., W. J. Tyson, and Quasim Dalvi. Transport Economics. London ; Boston: G. Allen & Unwin, 1980.

Dyfyniad MLA

Stubbs, P. C., et al. Transport Economics. G. Allen & Unwin, 1980.

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