The following books cover the Lamborghini Urraco models:
Landsem, Arnstein (Mar 15, 2011). The Book of the Lamborghini Urraco. Veloce Publishing. ISBN 978-1-84584-286-4.
This nicely presented hardback book is a fresh look at the Urraco model and its history, packed with facts, stories and photos. My car even appears in it! A worth addtition to any Urraco or Lamborghini fan's book shelf and can bought from Amazon here The Book of the Lamborghini Urraco
Lyons, Pete (1988). The Complete Book of Lamborghini. Publications International ltd. ISBN : 0-85429-735-9.
The older 320 page hardback book is a general and detailed reference to all Lamborghinis up to 1988 and contains around 20 pages covering the Urraco to Japla models.