Bruckshaw, J McG <br/><br/>
Magnetic variometers of the schmidt type  their full use and maintenance 
John McGarva Bruckshaw 
 - London  Hilger and Watts  1954 
 - viii, 115p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus
<br/><br/><label>Universal Decimal Class. No.: </label>550.3  / BRU