A separate title index is at the back of the book. The nice thing about this book is that everything is in one volume. With play index one may have to search many volumes to find a source that we have. As with Play Index all sources are in English but include translations of foreign works. Ref Z5781 P53.
Lists plays by title, playright and subject.
After each play comes the source symbols. A list of the sources is at the end of the book. It is probably the most exhaustive index of plays in anthologies. All sources are in English but include translations of foreign works. World drama is located in PN1600-3307.