Longman, Kenneth A. - In: Management Science 17 (1970) 2, pp. 124-124
Two letters to the Editor. --"To the Editor" by Cyrus Bernstein, Washington, D.C. (suggestion that Longman's Law is a generalization of the Heisenberg Principle of Indeterminacy) --"To the Editor" by Henry Geddes, Agincourt Ontario (refers to the column "Whose Business Do We Want?" that appeared...