8/15/2019 Hughes, 1989

http://slidepdf.com/reader/full/hughes-1989 1/7

8/15/2019 Hughes, 1989

http://slidepdf.com/reader/full/hughes-1989 2/7

8/15/2019 Hughes, 1989

http://slidepdf.com/reader/full/hughes-1989 3/7

8/15/2019 Hughes, 1989

http://slidepdf.com/reader/full/hughes-1989 4/7

8/15/2019 Hughes, 1989

http://slidepdf.com/reader/full/hughes-1989 5/7

8/15/2019 Hughes, 1989

http://slidepdf.com/reader/full/hughes-1989 6/7

8/15/2019 Hughes, 1989

http://slidepdf.com/reader/full/hughes-1989 7/7