Robert N. Pripps

The tractor factor

Classic farm tractors

The Field Guide to Ford Tractors

John Deere GP Tractors

Ford Tractors (Farm Tractor Color History)

The Field Guide to Farmall Tractors

The Big Book of Farmall Tractors

The Big Book of Massey Tractors

The Big Book of Farm Tractors

The Big Book of Caterpillar

Vintage Ford Tractors (Town Square Books)

The field guide to vintage farm tractors

Great American tractors

Vintage Ford Tractors

Farm tractors

John Deere

Big Book of Caterpillar

Great American Farm Tractors John Deere