The ABC & XYZ is an outdated book for 1998, but in the case of laying workers,
it is good info.  If you CANNOT find the queen, find SCATTERED eggs, find
MULTIPLE eggs in the same cell, you are time, frustration, and money ahead to
destroy and start over.
Because of MITES, viruses, and public fear of bees because of AHB, a book
written more than about 5 years ago is out of date.  The best beginner's book
written just re-appeared in a new printing 2 weeks ago by Dr. Diana
Sammanturo.  EVERY beekeeper should have on his desk the revised 1992 version
of The Hive and the Honey Bee.  Contact LJCONNOR@ aol.com for both of them
Good Luck!            George