Academy of sciences of the Latvin SSR / 
edited by V. Samsons, compiled by Z. Kalinka 
 - Riga :  Pub. House "Zinatne",  1977 
 - 64p. :  plate ;  20 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching<br/>Science--Europe
<br/><br/><label>Dewey Class. No.: </label>507.2094743