You may be able to buy a pre-owned, printed copy of the book from amazon.com. You can also buy a version of this book updated for 2010: the "Small Basic Computer Adventures" book.
This site maintained by Kevin Savetz. David Ahl's BASIC Computer Adventures is copyright © 1986, and is posted on www.atariarchives.org with the permission of the copyright holder. Do not redistribute, mirror, or copy this online book.