Traffic_John_Barleycorn_Must_Die_LP_Billboard_June_20_1970 Published June 12, 2014 at 485 × 689 in Daily 70s Ad: Traffic, ‘John Barleycorn Must Die’ L.P. (1970) Traffic, ‘John Barleycorn Must Die’ L.P. (‘Billboard’ magazine, June 20, 1970)