- Author: Christopher Gordon De Pree, Alan Axelrod
- Language: English
- Year: 2008
- Author: Christopher Gordon De Pree, Alan Axelrod
- Language: English
- Year: 2001
- Author: De Pree C. Axelrod A.
- Language: English
- Year: 2001
- Author: Christopher G. De Pree Alan Axelrod
- Language: English
- Year: 2001
Astronomy
pdf
- Author: De Pree Ch. Axelrod A.
- Language: English
- Year: 2001