Exploring the Deep Frontier: The Adventure of Man in the Sea By EARLE, Sylvia and Giddings, Al (COL) Books / Hardcover Books › Science › General ISBN: 0870443437 / Publisher: Natl Geographic Society, June 1980 Price Starting at $49.99 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. Used - Good Good condition. No Dust Jacket NOT AVAILABLE FOR SHIPMENT OUTSIDE OF THE UNITED STATES. $49.99 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store. Reviews Goodreads reviews for Exploring the Deep Frontier: The Adventure of Man in the Sea