Science at the cross roads  papers presented to the International Congress of the History of Science and Technology held in London from June 29th to July 3rd, 1931. 

 - London  Frank Cass and Co.  1971 
 - xxix, 235p.; 23 cm. 
<br/><br/><label>ISBN: </label>714628689 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science and Technolgy - History Science - Development. 
<br/><br/><label>Dewey Class. No.: </label>509  / I05S