PANEL-ECONOMIES WITH NEW DESIGNS OF LARGER EQUIPMENT HAULING = SECTION: ECONOMIES REALISEES PAR L'EMPLOI DE NOUVEAUX ENGINS DE PLUS GRANDE CAPACITE. TRANSPORTCONGER HM.sdIN: AM. MIN. CONGR. COAL SHOW. CLEVELAND, OHIO, 1972; WASHINGTON; AM. MIN. CONGR.; DA. S.D.; PP. 1-8Conference Paper

ECONOMIES ASSOCIATED WITH NEW DESIGNS AND APPLICATIONS OF LARGE EQUIPMENT. STRIPPING. HAULING. DRILLING = ECONOMIES LIEES AUX CONCEPTIONS NOUVELLES ET A L'UTILISATION D'ENGINS DE GRANDE CAPACITE EN MATIERE D'ENLEVEMENT DE MORTS-TERRAINS, DE TRANSPORT ET DE FORATIONDEMOSS EC; CONGER HM; HALL DC et al.1972; MING CONGR. J.; U.S.A.; DA. 1972; VOL. 58; NO 11; PP. 43-52; BIBL. 13 REF.Serial Issue