Cita APA

Hawkins, R. R. (1946). Scientific, medical and technical books: Published in the Unites States of America 1930-1944. Washington: The National Research Council.

Citación estilo Chicago

Hawkins, R. R. Scientific, Medical and Technical Books: Published in the Unites States of America 1930-1944. Washington: The National Research Council, 1946.

Cita MLA

Hawkins, R. R. Scientific, Medical and Technical Books: Published in the Unites States of America 1930-1944. Washington: The National Research Council, 1946.