Before being published in both hardback and paperback, the story was serialized (a nice traditional way to originally present the story) in four parts. The covers for each of these four installments was done by Arthur Suydam and the interior illustrations were done partially by Tom Yeates, the same artist who had made his Tarzan mark on the earlier "The Beckoning" from Malibu. Gary Gianni, Charles Vess, and Mike Kaluta also contributed.
As I recollect these four books, which I have tumbling around here somewhere, featured not only the "new" Tarzan story, but also showcased some vintage John Carter of Mars newspaper comic strips by ERB's son John Coleman Burroughs.
I later bought the distinctive Del Rey paperback, which sported an oddly attractive woodcut-like cover. It's been many years since read this one. It might be time to dig it out again.