APA (7e ed.) Bronvermelding

Hawkins, R. R. Scientific, medical, and technical books published in the United States of America 1930-1944.

Chicago (17e ed.) Bronvermelding

Hawkins, R. R. Scientific, Medical, and Technical Books Published in the United States of America 1930-1944.

MLA (8e ed.) Bronvermelding

Hawkins, R. R. Scientific, Medical, and Technical Books Published in the United States of America 1930-1944.

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