blue book

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun An official list of persons in the employ of the US government.
• noun A book listing the names of socially prominent people.
• noun A blank notebook with blue covers in which to write the answers to examination questions.

from the GNU version of the Collaborative International Dictionary of English.

• engraving A parliamentary publication, so called from its blue paper covers.
• The United States official “Biennial Register.”

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a blue booklet used in universities for writing examinations
• noun a report published by the British government; bound in blue
• noun a register of persons who are socially prominent