Companies etc Phonographic Copyright (p) – Discos CBS S.A.I.C.F. Credits A&R [Cbs] – Horacio Cusato Artwork, Photography By – Juan O. Gatti* Composed By, Arranged By – Invisible (9) Engineer – Néstor Gilardón, Oscar Gimenez Mixed By [Mezcla] – Roberto Labraga Musician – Gustavo Moretto, Luis Alberto Spinetta, Carlos Alberto (Machi) Rufino*, Héctor (Pomo) Lorenzo*, Tomás Gubitsch Photography By – Eduardo Martí