- Author: National Aeronautics And Space Administration
- Language: English
- Year: 1972
- Author: Foreign Areas Studies Division
- Language: English
- Year: 1961
- Author: Frederica M. Bunge ed.
- Language: English
- Year: 1982
- Author: Allison Butler Herrick Sidney A. Harrison Howard J. John Susan MacKnight Barbara Skapa
- Language: English
- Year: 1968
- Author: Irving Kaplan Mark Farber Barbara Marvin James McLaughlin Harold D. Nelson Donald Whitaker
- Language: English
- Year: 1971