Planetwatch
Looks at the Earth's environment, how the activities of men can have undesired effects on it, and ways to reduce the impact of human activity.
Materias
Ediciones (1)
- Planetwatch (2009)
Dorling Kindersley · inglés · ISBN 9780756658205
Looks at the Earth's environment, how the activities of men can have undesired effects on it, and ways to reduce the impact of human activity.
Dorling Kindersley · inglés · ISBN 9780756658205
