Polach, H.A. <br/><br/>
Improved synthesis techniques for methane and benzene radiocarbon dating. 

 - Northern Ireland-IE :   Pergamon press,   1967. 
 - páginas 359-364 :   ilustraciones blanco y negro 
 - Irregular 
 - Vol.18 (1967) 
 - Internacional journal of applied radiation and isotopes. Separata ;   no.18   .
 - Pergamon press. .