Effects of converting a zebra to a pelican crossing

Sonraí bibleagrafaíochta
Príomhchruthaitheoir: Williams, Marian C.
Údar corparáideach: Transport and Road Research Laboratory
Formáid: LEABHAR
Teanga:Béarla
Foilsithe / Cruthaithe: Crowthorne, Berkshire Transport and Road Research Laboratory 1984.
Ábhair: