- The Ocean realm, prepared by the Special Publications Division, National Geographic Society, Washington, D.C
- Exploring your world, the adventure of geography, prepared by the Special Publications Division, National Geographic Society
- John Muir's wild America, by Tom Melham ; photographed by Farrell Grehan, [paintings by H. Tom Hall] ; prepared by the Special Publications Division, National Geographic Society, Washington, D.C
- National Geographic book of mammals, prepared by the Special Publications Division, National Geographic Society