Barfield, Mark Triathlon : 20 weeks to success in 5 hours a week / Mark Barfield - 1st ed. - London : A. & C. Black, 2008. - vii, 152p 24 cm, ISBN: 9781408100097 (pbk.) Subjects--Index Terms: Triathlon -- Training; Dewey Class. No.: 796.4257 / BAR