Britannica and World Book are examples of what kind of reference work?

British troops stormed ashore on which islands on May 21, 1982? Which weight system uses a 16-ounce pound equal to about 453.59 grams? English people around the year 1000 called the Vikings by which national name, and paid a tax called a "geld" to buy th… Which city's streets range from the very wide Avenue Foch to the narrow Rue du Chat-qui-Peche? What is the brittle outer covering around an egg's yolk and white called? Broadcast on the DuMont network in 1946, "Faraway Hill" is considered the first network TV show in which genre? Broadway went ogre-green with a musical based on which 2001 animated film? Who starred on Broadway as "Diamond Lil", inviting men to "come up and see me sometime"?