Record Company Flyson, S.A.
Marketed By Flyson, S.A.
Printed By Publi-Giro, S.A.
Made in Spain.

It seems that credits for track B4 are wrong because if you check Rocky's Soundtrack is credited to Ayn Robbins, Bill Conti and Carol Connors.
Depósito Legal: B. 38978/77 (On cassette)
Depósito Legal: B: 38.978/77 (On cover)
Rights Society: SGAE
Other: En trámite (Impuesto de lujo a metálico. Permiso N.º)