Polly and polly-like devices 
/Proceedings of the informal colloquium on pollo and polly-like devices 11-12 January, 1972 held at Argonne National Laboratory, 
 - Virginia:   US Department of Commerce,   1972 
 - vii, 208p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Proceedings
<br/><br/><label>Universal Decimal Class. No.: </label>D 681.327.67  / L2