Usa "reference work" in una frase

1. His work also depended on reference works, which for all intents and purposes, were non-existent then! He had to first compile a set of tools for himself with which he could attack the task at hand and only when these were completed, could he start with his analyses

2. “You should feel free to consult any of the existing military training programs in The Just Alliance for assistance and advice in establishing and operating your military academy, and to arrange to have copies of their reference works made

3. 'Literary Marketplace,' a reference work published by R

4. A reference work

5. out since they are held as reference works in some libraries

6. This list starts with the Athenian Plato by his reference work Republic

7. Much thanks to the world of Google Books, which allows writers to research a library’s worth of great reference works without leaving the home office