The direction of research establishments :  Proceedings of a symposium held at the national physical laboratory on 26th, 27th & 28th september, 1956 

 - 1 volumen páginas varia 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Laboratorios--Direccion
<br/><br/><label>LC Class. No.: </label>QC51  / N3