1.
3.
The Ruby Way: Solutions and Techniques in Ruby Programming (3rd Edition)
by Fulton, Hal
ISBN: 9780321714633
5.
One Man's Compassion - Hal Donaldson - Paperback
by Buntain, Fulton, Donaldson,...
ISBN: 9780883682142
List Price: $5.99
7.
The Ruby Way: Solutions and Techniques in Ruby Programming, Portable Documents
by Fulton, Hal, Arko, Andr?
ISBN: 9780132480369