Los Blues cantan a Mr. Dylan (1966 EP)

Added to the Translated pages of Dylan Cover Albums is Los Blues cantan a Mr. Dylan, a 1966 4-track EP of folk-style Spanish translations. This example of the EP was released in Spain, but based on the vocal accent Manuel thinks the recordings may be from Mexico.
Additional information would be appreciated.
Thanks to Manuel Garcia Jara.

The tracklist:
En el viento (Blowin' In The Wind)
No soy yo (It Ain't Me, Babe)
Chica del norte (Girl From The North Country)
Adiós, Angelina (Farewell Angelina)