Operation and Service Manual for GPL Precision 900 Viewfinder Television Camera. Pleasantville, NY: General Precision Inc., 1966.

Operation and Service Instruction Manual for Precision 1000 Television System. Pleasantville, NY: General Precision Inc., 24537.

Preliminary Operation and Service Manual for GPL Three Lens Turret Camera Supplement to Basic Manual for Precision Television System Model PD-150. Pleasantville, NY: General Precision Inc., 1958.