Ecology and coal resource development : based on the International Congress for Energy and the Ecosystem, held at the University of North Dakota, Grand Forks, North Dakota, 12-16 June, 1978
Başlık:
Ecology and coal resource development : based on the International Congress for Energy and the Ecosystem, held at the University of North Dakota, Grand Forks, North Dakota, 12-16 June, 1978
Yazar:
International Congress for Energy and the Ecosystem (1978 : University of North Dakota)