lier / En cyc lopedia ▁Amer icana ) ▁ ▁David ▁T . ▁Holland , ▁ 1 9 8 5 – 1 9 9 1 . ▁Editor ▁( H arc ourt ▁Bra ce , ▁Gro lier / En cyc lopedia ▁Amer icana ). ▁ ▁Mark ▁C umm ings , ▁ 1 9 9 1 – 2 0 0 0 . ▁Editor ▁( Mac mill an , ▁Oxford ▁University ▁Press ). ▁ ▁Michael ▁Sh ally - J ensen , ▁ 2 0 0 0 – 2 0 0 5 . ▁Editor ▁( Mer ri am - Web ster / En cyc lop ædia ▁Britannica ). ▁ ▁K . ▁Anne ▁R anson , ▁ 2 0 0 5 – 2 0 0 6 . ▁Editor ▁( A cadem ic ▁American ▁Encyclopedia , ▁Gro lier ▁Mult imedia ▁Encyclopedia ). ▁ ▁Joseph ▁M . ▁Cast ag no , ▁ 2 0 0 6 – present . ▁Editor ▁( G ro lier / L ands ▁and ▁Pe op les , ▁New ▁Book ▁of ▁Popular ▁Science ). ▁ ▁See ▁also ▁▁ ▁List s ▁of ▁en cyc loped ias ▁ ▁References ▁ ▁External ▁links ▁▁▁ ▁Text ▁and ▁images ▁of ▁the ▁Encyc lo pa edia ▁Amer icana ▁ 1 8 5 1 ▁at ▁the ▁University ▁of ▁Michigan ' s ▁M aking ▁of ▁America ▁site . ▁ ▁Encyclopedia ▁Amer icana ▁Description ▁from ▁Gro lier ▁online ▁ ▁Complete ▁hyper link ed ▁ed itions ▁of ▁the ▁ 1 9 0 4 ▁and ▁ 1 9 1 8 - 2 0 ▁ed s . ▁at ▁the