Good morning. Here's the title of a libretto in our collection (and in 814 other libraries, according to WorldCat): Funny girl : a new musical / book by Isobel Lennart from an original story by Miss Lennart ; music by Jule Styne ; lyrics by Bob Merrill. Under AACR2, the main heading is the composer (Styne) with the uniform title "Funny girl. Libretto". Under RDA, the composer is entered as an additional access point with the relationship designator "Libretto for (work)". But what about Lennart and Merrill? Are the book and lyrics considered separate works in addition to the music and therefore all three should have author/title authority records for "Funny girl"? Should Lennart or Merrill be entered in the 100 field? Thank you for your help, Morris ********************************* Morris S. Levy Senior Music Cataloger Northwestern University Music Library 1970 Campus Drive Evanston, Illinois 60208 Phone: 847-491-3487 Fax: 847-467-7574 [log in to unmask]