1978, second printing, Pinnacle Books, 372 pages. The cover still has some shine and has no spine creases, but there is a wrinkle at the spine, as well as a sticker on the back and damage to both the front and back. The back cover and last few pages have bottom corner damage. The pages inside appear clean but tanned from age. Interestingly, this author was a highly respected writer in the fields of aeronautics, aviation, nuclear warfare, and hydrospace. He is also known for his novel, Cyborg, which became the TV series, The Six Million Dollar Man!