Environmental effects of increased coal utilization : ecological effects of gaseous emissions from coal combustion /

Mode of access: Internet.

Program planning document highway vehicle alternative fuels utilization program (AFUP).

April 1978.

Methane generation from human, animal, and agricultural wastes : report of an ad hoc panel of the Advisory Committee on Technology Innovation, Board on Science and Technology for International Development, Commission on International Relations, National Research Council.

Mode of access: Internet.