A2 credited as "10 Perritos" on back cover and "Diez X Diez" on labels.
Catalog number NAF:02 on rear; NAF-2 on label.
"Grabado en Estudios Soñua en Iruña. Diciembre del 82." [Recorded at Soñua on December 1982]
Depósito legal fromf 1982 but released in early 1983.
Singer Evaristo is not credited.
Nafarrock management.
Editor A. Fàbregues
Paper sleeve - Insert on some issues
Around one thousand copies were released.