Hawkins, R. R. 1. . e. (1946). Scientific, medical, and technical books published in the United States of America, 1930-1944; a selected list of titles in print, with annotations. Prepared under the direction of the National Research Council's Committee on Bibliography of American Scientific and Technical Books. s.n.
Lua i Stíl Chicago (17ú heag.)Hawkins, Reginald Robert 1902- ed. Scientific, Medical, and Technical Books Published in the United States of America, 1930-1944; a Selected List of Titles in Print, with Annotations. Prepared Under the Direction of the National Research Council's Committee on Bibliography of American Scientific and Technical Books. Washington: s.n, 1946.
Lua MLA (9ú heag.)Hawkins, Reginald Robert 1902- ed. Scientific, Medical, and Technical Books Published in the United States of America, 1930-1944; a Selected List of Titles in Print, with Annotations. Prepared Under the Direction of the National Research Council's Committee on Bibliography of American Scientific and Technical Books. s.n, 1946.