Collected works : Vol. 3. the correspondence principle (1918-1923) / Niels Bohr ; general editor: L. Rosenfeld. Bohr, Niels, 1885-1962. Rosenfeld, L. (Leon), 1904-1974. Physics. QC3 .B584 530 BOC English and Danish. General editor: Erik Rüdinger (up til 1989); Finn Aaserud (1989- ). Vol. 10 has imprint: Amsterdam ; New York : Elsevier. Vol. 1, <3-5 >: Sole distributors for the U.S.A. and Canada: American Elsevier Pub. Co., New York, N.Y.; v. 6-<8 >: Sole distributors for the U.S.A. and Canada: Elsevier Science Pub. Co., New York, N.Y. Includes bibliographical references and indexes. Amsterdam : North-Holland, 1976. 1976. 1972 Text v. : eng engdan