The Value Dimension: Marx versus Ricardo and Sraffa
Ben Fine
In Defense of a Dogma
H. P. Grice & P. F. Strawson
Sylvan, Fox and Deep Ecology: A View from the Continental Shelf
Robin Attfield
Kritik der reinen Vernunft / Zweite hin und wieder verbesserte ...
Immanuel Kant
Theory of the Earth
Thomas Nail
Earthy Realism: The Meaning of Gaia
James Lovelock & Mary Midgley