The Economics of transport / by Michael R. Bonavia ... with an introduction by J.M. Keynes ... Bonavia, Michael Robert. Transportation. Transportation Great Britain. HE151 .B63 385.012 BOE London : Nisbet & Co. Ltd; [etc., etc., 1936. 1936. 1936 Text 2 p. l., vii-x, 202 p. : eng Cambridge economic handbooks Great Britain.