I have the 1982 Osprey edition of this book. It's a 190 page hardcover with about 250 good to excellent photos of armoured vehicles in Vietnam. It covers from the 1950's right up to the end of the US period.
Many pictures of vehicles from the obscure and little known to the extremely well known, often in unusual situations. I particularly like the unposed and natural photography. Soldiers at rest, repairing vehicles, eating, refuelling, re-arming and other boring things that soldiers do in a battle area. I liked the picture of an Aussie sitting on a bucket reading the hometown paper in front of his Centurion, and the Chinook towing an M113.
This covers many vehicles from the tiny M5 tanks used by "Etranger de Cavalerie" to the mighty monsters used by the Ausssies, the Centurion main battle tank. In between are almost all the vehicles used by the French, Australians and US Army and Marines. The outdated Bren carriers and Daimler Dingos used by the French, the M24 Sheridan, the M88 recovery tank, the huge M55 Gun, the Marine's Patton and unusual armour like the Ontos, the M67 and the M42 A1.
This book is really a gift to the armour model-maker !