D Sheppard

THE AVAILABILITY OF BOOKS ON DRIVING

D Sheppard, 1982 .

THE DEVELOPMENT OF THE GREEN CROSS CODE

D Sheppard, K J Sargent, 1974 .

INCIDENCE AND EFFECTS OF POLICE ACTION ON MOTORING OFFENCES AS DESCRIBED BY DRIVERS

R F Davies, D Sheppard, R Henderson, 1980 .