E I ), ▁the ▁list ▁" Im agine ▁Gren o ble " ▁( Mode m ), ▁the ▁list ▁" ▁A imer ▁Gren o ble ▁pour ▁vous " ▁( PS , ▁P CF , ▁Cap 2 1 , ▁M RC , ▁PR G , ▁G E , ▁GO ▁C ito yen net é ), ▁and ▁the ▁list ▁" G reno ble ▁une ▁ville ▁pour ▁tous " ▁( E EL V , ▁P G , ▁Les ▁Altern at ifs , ▁G A , ▁A DE S , ▁Ré seau ▁C ito yen ). ▁ ▁Bibli ography ▁ ▁C éd ric ▁Aven ier , ▁L ' ordre ▁du ▁b é ton . ▁La ▁tour ▁Per ret ▁de ▁Gren o ble , ▁C RA terre ▁éditions , ▁Lab ex ▁A E & CC , ▁E NS A ▁Gren o ble , ▁mai ▁ 2 0 1 3 , ▁ 4 8 ▁p . ▁C éd ric ▁Aven ier , ▁Anne ▁Cost e , ▁The ▁Per ret ▁Tower ▁: ▁architecture , ▁art ▁and ▁press ▁( rel ations ▁d ’ August e ▁Per ret ▁avec ▁le ▁milieu ▁artist ique ▁de ▁son ▁é poque ▁: ▁projet ▁de ▁la ▁Tour ▁d ’ orientation ▁de ▁Gren o ble ), ▁ 4 th ▁international ▁Congress ▁on ▁Const ruction ▁History , ▁Paris , ▁juillet ▁ 2 0 1 2 . ▁C éd ric ▁Aven ier , ▁Anne ▁Cost e , ▁The ▁Per ret ▁Tower ▁: ▁symbol ▁of ▁the ▁ 1 9 2 5 ▁International ▁H ydro - elect ric ▁Power ▁Ex hib ition ▁in