11. The reference collection comprises a total of 65, 000 volumes distributed over two floors. 12. The flood of 2008 had taken out much of the adult and reference collections . 13. Both books were accepted as standard reference collections , demonstrating Alexandre s great technical knowledge. 14. There is also a reference collection of help pages. 15. The travel and history and New Zealand reference collections are located on the second floor. 16. Messier has assembled a reference collection of photographic papers that is considered unique in the world. 17. Areas of strength in the LIR Reference Collection include labor and employment law, and grievance arbitration. 18. A significant part of Testot-Ferry's reference collection of 5262 objects was Mus�e des Ursulines in M�con. 19. A "'reference collection "'is a collection of objects maintained for the purpose of study and authentication. 20. The Rotary Club provided a $ 2000 Reference collection for the opening of the 1968 building.