1.  An invaluable resource in the delivery of the programme is the model travel and tourism centre.

2.  Americans have British scientist James Smithson to thank for this invaluable resource.

3.  And as a timesaving tool, the Internet proves an invaluable resource for products and advice.

4.  Extraterrestrial water in any form is considered an invaluable resource for production of oxygen and rocket fuel for human explorers and as a necessary ingredient for life.

5.  For actors and directors and for theatergoers seeking a greater appreciation of the plays, this section should be an invaluable resource.

6.  For those devotees who want to track the creative growth of the writers and performers, the screening packages are an invaluable resource.

7.  Leading religion and US history specialists said the library would provide invaluable resources on the history of gender, faith, and journalism in the United States.

8.  Most significant was the closing of the Smithsonian Collection of Recordings, which has been an invaluable resource for scholars and the public for a quarter-century.

9.  That correspondence, and the letters they wrote when apart, were invaluable resources for Vanessa Redgrave as she prepared to play Clementine.

10.  The former Boston College tight ends, Brian Saxon and Pete Mitchell, now with the Atlanta Falcons and Jacksonville Jaguars, were invaluable resources for Pollack.