T. I. Fossen
ISBN 0-471-94113-1. John Wiley & Sons Ltd, UK, 1994
Approx. £270.00
Electronic orders: www.amazon.co.uk
T. Perez
ISBN 1-85233-959-4. Springer Verlag, 1st ed. 2005
Approx. USD: 150.00
Electronic orders: www.amazon.com