Lapo, A. V. <br/><br/>
Traces of bygone biospheres / 
A.V. Lapo ; translated from the Russian by V. Purto. 
 - Rev. from the 1979 Russian ed. 
 - Moscow :  Mir Publishers,  1987. 
 - 352 p. :  ill. ;  20 cm. 
<br/><br/> Translation of: Sledy bylykh biosfer. 
<br/><br/><label>LCCN: </label>83204131  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Popular works.