Deep Ecology for the 21st Century, Part 1: Ecological State of The WorldBuku AudioDeep Ecology for the 21st Century, Part 1: Ecological State of The WorldkaryaDavid Suzuki, Ph.D.Penilaian: 4 dari 5 bintang4/5Simpan Deep Ecology for the 21st Century, Part 1: Ecological State of The World untuk nanti