original_query: What is the title of the book that includes Villa-Lobos's string quartets?
query: What is the title of the book or publication that includes Villa-Lobos's String Quartets?
answer: There is no single book mentioned that contains all of Villa-Lobos's string quartets.  However,  "Heitor Villa-Lobos: The Complete String Quartets" is a multi-CD set (with an optional DVD) that includes them.