Roach, S. A. The theory of random clumping / S. A. Roach. - London : Methuen, c1968. - vii, 94 p. : illus. ; 23 cm. "Distribution in the U.S.A. by Barnes & Noble." Bibliography: p. 91-92. Subjects--Topical Terms: Probabilities. Dewey Class. No.: 519.1 / ROT 1968