This book is titled "Earth Times Two" written and published by Pamela Reynolds. This was published in 1970 and has a card number of 79-121823. This book has 160 pages.
Other than that and some light stains and shelf wear on the cover, this book is in very good condition and the pages inside are clean and legible.
This book by Pamela Reynolds would make a wonderful addition to a collection of children's books.