Tina la Tortuga y Carlos el Conejo/Tina the Turtle and Carlos the Rabbit.
Bishop, Dorothy Sword
This copy is nearly identical with that from the 1990 printing, but there are some clear differences. The cover colors are different; here blue is prominent and Carlos' shoes are brown. There is no text on the back cover here. The introduction on the reverse of the title-page is different and has an acknowledged author, Carlos Saavedra. There are no advertisements at the back of this edition. See my comments under the 1990 printing.
National Textbook Company