Nelson, Ralph L. Merger movements in American industry : 1895-1956 / Ralph L. Nelson - Princeton : Princeton University, c1959. - xxi,177 p. : ill., figs., tabs. ; 23 cm. - National bureau of economic research . ISBN: LCCN: Subjects--Topical Terms: IndustryAmerica Economic research LC Class. No.: HG4028 / .M4N4 1959 Dewey Class. No.: 338.830973 / N429m