The economic impact analysis of R84-29 : mine-related water pollution regulations /

"Project 86/7005."

Opals from a Mexican mine.

The greatest of the Gods is Quetzalcoati.--The water lady.--The mysterious disappearance of Mrs T. Tompkins Smith.--The vision of Don Juan on the Piedra de los Angeles.--Cosmopolitana mexicana.

Feasibility study of response techniques for discharges of hazardous chemicals that float on water /

Final report, issued Oct. 1976.

Effects of strip mining the abandoned deep Anna S Mine on the hydrology of Babb Creek, Tioga County, Pennsylvania /

Bibliography: p. 41.

The economic impact of proposed amendments to chapter 4, mine-related pollution (R76-20 and R77-10) /

Bibliography: p. 75-78.

The national strip mine study : communication from the Assistant Secretary of the Army (Civil Works) transmitting a Corps of Engineers report on the national strip mine study, pursuant to Section 233 of Public Law 91-611.

Includes bibliographical references.

Special report on an evaluation of mine sealing

"Coal Industry Advisory Committee to the Ohio River Valley Water Sanitation Commission. Research project no. 370-8."