DAVIS, Mike; PHILLIPS, Ron & YORK, F.W.
Singapore Buses - Singapore Bus Service
Volume One - Part One & Two
Two volumes detailing Singapore bus types with photographs throughout.
Part One - Early Single-Deck Buses and the first Double-Deckers;
Part Two - Double and Single-Deck Buses from the 1980s to 2005.
DAVIS, Robert C. & KELL, Robert L.
abc British Bus Fleets - No. 10: North of England
DAVIS, W. Jefferson
Air Conquest
Account of flying worldwide on early civil airline services in the 1920s.
