Spee, P. E <br/><br/>
Region b.-f. du specter solaire 
P. E. Spee 
 - Bruzelles  Polleunis and Centrick  1899 
 - [various pagings.] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Region b.-f<br/>Solar spectrum<br/>Spectre solaire
<br/><br/><label>Universal Decimal Class. No.: </label>523.947-355   / SPE