▁Z iy ang ." ▁He ▁said ▁that ▁both ▁he ▁and ▁Hu ▁J int ao ▁approved ▁using ▁force ▁against ▁the ▁students . ▁ ▁Li ▁explicitly ▁as ser ts ▁that ▁D eng ▁X ia op ing ▁personally ▁took ▁all ▁the ▁big ▁dec isions , ▁including ▁ordering ▁the ▁People ' s ▁Liber ation ▁Army ▁to ▁crack ▁down ▁on ▁T ian an men ▁Square ▁on ▁ 4 ▁June ▁ 1 9 8 9 ; ▁the ▁decision ▁to ▁imp ose ▁mart ial ▁law ▁was ▁taken ▁at ▁a ▁meeting ▁with ▁five ▁Polit b uro ▁Stand ing ▁Committee ▁members ▁and ▁president ▁Yang ▁Shang k un ▁at ▁D eng ' s ▁home ▁on ▁ 1 7 ▁May , ▁when ▁it ▁was ▁also ▁decided ▁to ▁replace ▁Z ha o ▁Z iy ang ▁with ▁Ji ang ▁Z em in ▁as ▁General ▁Secretary ▁of ▁the ▁Commun ist ▁Party ▁of ▁China . ▁ ▁In ▁closing , ▁Li ▁writes ▁that ▁" leading ▁cad res ▁of ▁all ▁levels ▁could ▁learn ▁the ▁less on ▁from ▁history ▁and ▁try ▁their ▁best ▁to ▁avoid ▁similar ▁inc idents ▁from ▁taking ▁place , ▁or ▁they ▁should ▁do ▁their ▁best ▁to ▁contain ▁[ c ivil ▁un rest ] ▁to ▁the ▁smallest ▁scale ▁so ▁that ▁they ▁would ▁not ▁affect ▁the ▁work ▁[ of ▁the ▁Commun ist ▁Party ] ▁advers ely ". ▁ ▁Ab orted ▁publication ▁ ▁Three ▁days ▁before ▁the ▁book ▁was ▁due ▁to ▁have ▁been ▁released , ▁New ▁Century ▁Press ▁ab orted ▁the ▁launch , ▁saying ▁on ▁its ▁website : ▁" Acc ording ▁to ▁copy right ▁information ▁provided ▁by ▁relevant ▁institutions ▁and ▁Hong