For Goats Head Soup, It's Only Rock 'n Roll: "Swedish Charts 1972–1975 (in PDF-files)" (PDF) (in Swedish).
2014년 1월 12일에 확인함.  For Goats Head Soup, It's Only Rock 'n Roll: “Swedish Charts 1972–1975 (in PDF-files)” (PDF) (스웨덴어).