The cost of collisions [by] P.N. Troy [and] N.G. ButlinPatrick Nicol Troy · First published 1971Open the Tome
Environmental quality in four Melbourne suburbsPatrick Nicol Troy · First published 1972Open the Tome
Environmental quality in four Sydney suburban areasPatrick Nicol Troy · First published 1971Open the Tome
Drivers' licences and vehicles in the Australian Capital TerritoryPatrick Nicol Troy · First published 1968Open the Tome
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