vitamins

Testing Determination of Vitamin B Complex in Dehydrated Vegetables From the Prints Photographs Division Library of Congress Dr G I Jones associate chemist conducts tests in determination of vitamin B complex in dehydrated vegetables Regional agricultural research

Testing Determination of Vitamin B Complex in Dehydrated Vegetables From the Prints Photographs Division Library of Congress Dr G I Jones associate chemist conducts tests in determination of vitamin B complex in dehydrated vegetables Regional agricultural research

Testing Determination of Vitamin B Complex in Dehydrated Vegetables From the Prints Photographs Division Library of Congress Dr G I Jones associate chemist conducts tests in determination of vitamin B complex in dehydrated vegetables Regional agricultural research