Johnson, Frederick <br/><br/>
Investigations in Southwest Yukon :  geobotanical and archaeological reconnaissance 

 - Andover :  R. S. Peabody foundation for archaeology,  1964 
 - 198 p :  ill., graph., tab., append. 
 - Papers of the Robert S. Peabody foundation for archaeology, 6(1) .
<br/><br/> <Donation Engel>