ECONOMIC GEOLOGY OF TIOGA AND BRADFORD COUNTIES = GEOLOGIE ECONOMIQUE DES COMTES TIOGA ET BRADFORDLUCE PB; EDMUNDS WE; BERG TM et al.EDMUNDS WE; LUCE PB; 1981; GUIDEB. ANNU. FIELD CONF. PA. GEOL.; ISSN 0375-5630; USA; DA. 1981; NO 46; PP. 57-74; 6 TAB. ; ILL.Article

GEOLOGY OF TIOGA AND BRADFORD COUNTIES, PENNSYLVANIA = GEOLOGIE DES COMTES TIOGA ET BRADFORD, PENNSYLVANIEBERG TM; CROWL GH; EDMUNDS WE et al.1981; GUIDEB. ANNU. FIELD CONF. PA. GEOL.; ISSN 0375-5630; USA; DA. 1981; NO 46; 162; BIBL. 205 REF.; ILL.Serial Issue

ROAD LOG = LOG ROUTIERBERG TM; CROWL GH; EDMUNDS WE et al.BERG TM; CROWL GH; EDMUNDS WE et al.1981; GUIDEB. ANNU. FIELD CONF. PA. GEOL.; ISSN 0375-5630; USA; DA. 1981; NO 46; PP. 103-162; 11 TAB. ; ILL.Article

MISSISSIPPIAN-PENNSYLVANIAN DISCONFORMITY AND PENNSYLVANIAN STRATIGRAPHY = LA DISCORDANCE MISSISSIPPIEN-PENNSYLVANIEN ET LA STRATIGRAPHIE PENNSYLVANIENNEEDMUNDS WE; BERG TM; CROWL GH et al.EDMUNDS WE; 1981; GUIDEB. ANNU. FIELD CONF. PA. GEOL.; ISSN 0375-5630; USA; DA. 1981; NO 46; PP. 33-38; ILL.Article

SUBSURFACE STRATIGRAPHY = STRATIGRAPHIE DE SUBSURFACEBERG TM; BERG TM; BERG TM; BERG TM; CROWL GH et al.1981; GUIDEB. ANNU. FIELD CONF. PA. GEOL.; ISSN 0375-5630; USA; DA. 1981; NO 46; PP. 5-9Article

TIOGA-HAMMOND FLOOD CONTROL PROJECT = PROJET DE LUTTE CONTRE LES INONDATIONS PAR LES BARRAGES DE TIOGA ET HAMMONDWILSHUSEN J PETER; WILSON D; BERG TM et al.WILSHUSEN J PETER; 1981; GUIDEB. ANNU. FIELD CONF. PA. GEOL.; ISSN 0375-5630; USA; DA. 1981; NO 46; PP. 77-90; ILL.Article