Mayaud, P. N <br/><br/>
A hundred year series of geomagnetic data 1868-1967  indices as storm sudden commencements 
P. N. Mayaud 
 - Paris  IUGG Publications  1973 
 - [various pagings.] 
 - IAGA Bulletin; no. 33 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Geomagnetism
<br/><br/><label>Universal Decimal Class. No.: </label>083:550.38  / IAGA-33