APA
Brown W., Huggins N. I., . (1992). Colin Powell. New York: Chelsea House Publishers.
Chicago
Brown Warren, Huggins Nathan Irvin, . 1992. Colin Powell. New York: Chelsea House Publishers.
Harvard
Brown W., Huggins N. I., . (1992). Colin Powell. New York: Chelsea House Publishers.
MLA
Brown Warren, Huggins Nathan Irvin, . Colin Powell. New York: Chelsea House Publishers. 1992.