This is an invitation to Ada and Ada Reference Manual written by Harry Katzan. The book is a hardcover edition published by Mcgraw Hill in 1982. It has 429 pages and is written in English. The book title is “Invitation To Ada And Ada Reference Manual” and the author is Harry Katzan. The book is categorized under Computers and Reference. The book’s condition is good in very good, with some page wrinkling on the edge (from dampness) and some dust jacket defects. The book is perfect for anyone interested in learning about Ada programming and will be a valuable addition to any computer enthusiast’s library.