Breakthrough

Ballantine Books, September 1977. Mass Market . 3.1 PB standard 50%.

Ballantine Books, 1977. Mass Market Paperback. Good. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.Dust jacket quality is not guaranteed.

Knopf Doubleday Publishing Group, 1976. Hardcover. Acceptable. Disclaimer:A readable copy. All pages are intact, and the cover is intact. Pages can include considerable notes-in pen or highlighter-but the notes cannot obscure the text. At ThriftBooks, our motto is: Read More, Spend Less.Dust jacket quality is not guaranteed.

Ballantine Books. Mass Market Paperback. New. New. In shrink wrap. Looks like an interesting title!

mass_market. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book.