Colour blindness and defective eyesight in officers and sailors in the merchant marine : a criticism of the Board of Trade tests / by Thomas H. Bickerton.
License information
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
Colour blindness and defective eyesight in officers and sailors in the merchant marine : a criticism of the Board of Trade tests / by Thomas H. Bickerton. Credit: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London). Public Domain Mark