THE PROFESSIONAL GEOLOGIST IN ENVIRONMENTAL, HYDROLOGIC AND ENGINEERING GEOLOGY.ROBINSON CS.1975; PROF. GEOLOGIST; USA; 1975, VOL. 12, NUM. 0001, P. 5 A 7Serial Issue

ROLE OF GEOLOGISTS IN WISE USE OF EARTH.HILL ML.1974; J. GEOL. EDUC.; USA; 1974, VOL. 22, NUM. 0005, P. 221 A 222Serial Issue

THE PROFESSIONAL GEOLOGIST IN EDUCATION.HAUN JD.1975; PROF. GEOLOGIST; USA; 1975, VOL. 12, NUM. 0001, P. 10 A 12Serial Issue

PROFESSIONAL PRACTICE IN ENVIRONMENTAL GEOLOGY.IVEY JB.1975; BULL. ASS. ENGNG GEOLOGISTS; USA; (SEM., ENV. GEOL. COLORADO; DENVER; 1973),1975, VOL. 12, NUM. 0002, P. 143 A 159Serial Issue

THE PROFESSIONAL GEOLOGIST IN POLITICS.FENTRESS GH.1975; PROF. GEOLOGIST; USA; 1975, VOL. 12, NUM. 0001, P. 9Serial Issue

THE ROLE OF THE PROFESSIONAL GEOLOGIST IN STATE SURVEYS.ROLD JW.1975; PROF. GEOLOGIST; USA; 1975, VOL. 12, NUM. 0001, P. 7 A 9Serial Issue