Billboard  Buyer's Guide 1970-71 
Billboard 1970-09-12 Buyer's-Guide
Billboard 1970-09-12 Buyers-Guide p17
 
Apple Records  May 1969 - May 1970 (pages 9-26) 
Billboard 1970-09-12 Buyer's-Guide p0910
Billboard 1970-09-12 Buyer's-Guide p1112
Billboard 1970-09-12 Buyer's-Guide p1314
Billboard 1970-09-12 Buyer's-Guide p1516
Billboard 1970-09-12 Buyer's-Guide p1718
Billboard 1970-09-12 Buyer's-Guide p1920
Billboard 1970-09-12 Buyer's-Guide p2122
Billboard 1970-09-12 Buyer's-Guide p2324
Billboard 1970-09-12 Buyer's-Guide p2526
 

★★★