The Porsche 911 SC 78 to 83 Bentley #P983 Printed Service Manual - Serialized is an original, not a copy, hardcover book published by Bentley Publishers. It covers service manuals for the Porsche 911 SC models from 1978 to 1983, including Coupe, Targa, and Cabriolet. The book is illustrated and written in English, with a focus on technology, engineering, and transportation. With a copyright and measuring 11 inches in length and 8.4 inches in width, this service manual is a valuable resource for owners of these specific Porsche models.