Vista normal Vista MARC Vista ISBD

Webster, F. V.,

Traffic signals / By f. v. webster and b. m. cobbe - 111 páginas - Road research technical paper ; no. 56 .

A la cabeza de la portada: road research laboratory, ministry of transport

Subjects--Topical Terms:
Transito--Signos y señales--Gran Bretaña

LC Class. No.: HE5615 / W43