International radio weather code for use on United States selected ships. 

 - Washington,  U.S. Govt. print. off.,  1930. 
 - ii, 14 p. incl. tables.  30 cm. 
<br/><br/> At head of title: W.B. no. 1005. United States Department of agriculture. Weather bureau. 
<br/><br/><label>LCCN: </label>agr30000533  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cipher and telegraph codes.<br/>Weather telegraphy.
<br/><br/><label>LC Class. No.: </label>QC872  / .U63 1930