In Situ Tests of Bearing Capacity of Roof and Floor in Selected Bituminous Coal Mines: A Program Report - Longwall Mining, Issues 7401-7420

Waste Lubricating Oil Research: Some Innovative Approaches to Reclaiming Used Crankcase Oil, Issues 7921-7930; Issues 7932-7939

Vapor-liquid Equilibrium Data for Two Helium-nitrogen-methane Mixtures from 76.50 to 1640 K and Pressures to 1,200 PSIA: 1971-1972

The Diffusion Flame in Free Convection: Buoyancy-induced Flows, Oscillations, Radiative Balance, and Large-scale Limiting Rates, Issues 8261-8280