Rydén, Stig. <br/><br/>
Discovery in the skokloster collection of a 17- century Indian Head Dress from delaware. 

 - Suecia-SU :   The Ethographical Museum,   1963. 
 - páginas 107-121 :   ilustraciones blanco y negro 
 - Irregular 
 - No. 2-4 (1963) 
 - Ethnos. Separata ;   no. 2-4 .
 - The Ethographical Museum of sweden, stockholm. .