HANBDBOOK OF THE NATIONS, 15th Edition, 1994, Published and Printed for Governmental Use by the U. S. Central Intelligence Agency. Available through Internet and bookstores.

MEDICAL ENCYCLOPEDIA, Eighth Edition, World Book, Inc., Chicago, Il.   Rush Presbyterian-St Luke’s Medical Center,

WORLD ALMANAC, 2007, 2006,; World Almanac Books, 512 Second Avenue, New York, N>Y>

WORLDMARK ENCYCLOPEDIA OF THE NATIONS, 12th Edition, 2007. Thompson Gale, Detroit, New York, London.