- Author: Iain Nicolson
- Language: Portuguese
- Year: 1970
Química
pdf
- Author: John O. E. Clark
- Language: Portuguese
- Year: 1971
Astronomia
pdf
- Author: Iain Nicolson
- Language: Portuguese
- Year: 1970
- Author: Iain Nicolson
- Language: Portuguese
- Year: 1970
- Author: Sune Engelbrektson
- Language: Portuguese
- Year: 1975
Matemática
pdf
- Author: Charles Solomon
- Language: Portuguese
- Year: 1969