This book cover landed on Facebook. It appears there was an early (or original) edition publishe din 1952 without a jeep on the cover. The CJ-5 cover edition was published in 1960 (and possibly other years). I do not know if a jeep plays any role in the narrative.
1952: (can be found on Amazon for $14.59)
1960: A copy of this book can be found on eBay for $4.99 plus shipping: