tracks side b lacquer cut by Ernesto Constanzo tracks side a lacquer cut by Jose Espinosa Record Company EMI Capitol De Mexico, S.A. De C.V. Phonographic Copyright (p) EMI Records Ltd. Matrix / Runout: SLEM-1001-1 20-IX-82 JE (Side A etched) Matrix / Runout: SLEM-1001-2 10-VIII-82 ECA (Side B etched)