6 1 20 HUGHES, John G Additional Author Debra L. Nelson Primary Author James Campbell Quick Primary Author mixed material 9780324580969 Mason 2009 HUGHES, Bob Additional Author COTTERELL, Mike Additional Author Danniefaizal Primary Author mixed material 9786027975798 Yogyakarta Bentang Belia 2014 STEPHENSON, Helen Primary Author Paul Dummett Primary Author John Hughes Primary Author mixed material Cengage Learning IMG_0007.jpg.jpg HUGHES Primary Author Kapoor Primary Author Dlabay Primary Author mixed material 9780071285544 United States Of America McGraw-Hill 2009 12075489-1.jpg.jpg HUGHES Primary Author GAYLORD Additional Author mixed material McGraw-Hill, Inc 11001462-1.jpg.jpg HUGHES, John G Primary Author mixed material 0136298826 Prentice Hall 1991 11000835-1.jpg.jpg