6 1 10 Abdel-Aziz Ismail Kashef Primary Author mixed material 0070334897 New York McGraw-Hill 1986 Groundwater_Engineering.jpg.jpg Robert R. Compton Primary Author mixed material 0471166987 New York John Wiley & Sons 1962 Manual_of_Field_Geology.jpg.jpg Theory and Problems Of Introductory Geology Richard W. Ojakangas Primary Author mixed material 0070477043 New York McGraw Hill 1991 Colin R. Ward Primary Author mixed material 0867930969 Boston Blackwell Scientific Publications 1984 W.S. MacKenzie Primary Author C. Guilford Additional Author mixed material 058245591x England Longman Group Limited 1988 Atlas_of_Rock-Forming_Minerals_in_Thin_Section_Ed-_6.jpg.jpg A.C. McLean Primary Author C.D.Gribble Additional Author mixed material 0419160000 London Taylor & Francis 1985