Siegwarth, J.D. <br/><br/>
A portable calibration densimeter for use in cryogenic liquids / 
J.D. Siegwarth, J. F. LaBrecque 
 - Washington, D.C.:  United States Government Printing Office,  1981 
 - 13 p. :  ill. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ice mechanics<br/>Cryogenics--materials science
<br/><br/><label>Dewey Class. No.: </label>620.11216