General Description 1.8E1

Revise examples to read:

ISBN 0-435-91660-2 (cased). – ISBN 0-435-91661-0 (paperback)

ISBN 0-387-08266-2 (U.S.). – ISBN 3-540-08266-2 (Germany)

ISBN 0-684-14258-9 (bound) : $12.50. – ISBN 0-684-14257-0 (paperback) : $6.95

ISBN 0-7725-0344-X (paperback) : $8.75