@incollection{, 57F0788C2E77045F126AF8DEEBA6B540 , author={{Mbina, AnthonyAdomi} and {Dr. Bassey, LunaE} and {University of Uyo}}, journal={{Global Journal of Human Social Sciences}}, journal={{GJHSS}}2249-460X0975-587X10.34257/GJHSS, address={Cambridge, United States}, publisher={Global Journals Organisation}2137987 } @book{b0, , title={{Foot Bridges}} , author={{ RDennis }} , year={2004. June 25, 2010} , note={Retrieved. dead link} } @book{b1, , title={{How to build paths, steps & Footbridges}} , author={{ PJeswald }} , year={2005} , publisher={Storey Publishing} , address={North Adams, Massachusetts} } @book{b2, , author={{ RoryRenfro }} , title={{Pedestrian/Bicycle Overcrossings: Lessons Learned}} , year={June 2007} } @incollection{b3, , title={{Pedestrian Overpasses/Underpasses}} , journal={{Pedestrian Bicycle Information Center}} , year={2013-11-14} } @incollection{b4, , title={{WALKWAY OPENS, THOUSANDS EXPLORE UNIQUE STATE PARK}} , journal={{Poughkeepsie Journal}} , year={October 3, 2009. 2009-10-06} } @book{b5, , title={{Google search}} }