2ibid
3katyburne，akgavesagast”hae”，astreetjourna，apri10，2012
4thedoddfrankanoist，feb12
5nadshires62，000usevent，b，apri2
680perfusadutsfaynt，surveyfds，es，juy23
7davidstoration，pubicaffairs，2013，chapter32
iiangdah，thefrackedupashaegasbubbe，gobaresearch13arch2013
9ibid
10guysersaysheregretssheshugebetonshae，fanber6，2013
11anthonyatkson，thoaspikettyandeanuesaez，estheongrunofhistory，journaofenoiciterature2011，49：1，371
12obaaseequaityspeech，dec6，2011
13robertehe01ofthenationearnhafofav20，2011
14garyaen，therockefeerfie，buaneerbooks，c1976