APA
National Industrial Conference Board. (New York), National Industrial Conference Board. (New York), . (1956). Chart book of current business trends. New York: N I C B USA.
Chicago
National Industrial Conference Board. (New York), National Industrial Conference Board. (New York), . 1956. Chart book of current business trends. New York: N I C B USA.
Harvard
National Industrial Conference Board. (New York), National Industrial Conference Board. (New York), . (1956). Chart book of current business trends. New York: N I C B USA.
MLA
National Industrial Conference Board. (New York), National Industrial Conference Board. (New York), . Chart book of current business trends. New York: N I C B USA. 1956.
