edited by the editors of Encyclopedia Britannica The Supervision Of The editors Of Encyclopaedia Britannica The Supervison Of The Editors Of Encyclopaedia Britannica Editors of Encyclopedia Britannica The Supervision Of The Editors Of Encyclopaedia Britannica The Supervision Of The editors Of Encuclopaedia Britannica prepared under the supervision of the editors of Encyclopaedia Britannica The Supervision Of Encyclopaedia Britannica The Supervision Of The Editors Of Encyclopaedia Britannicaprepared preparde under the supervision of Emcuclopaedia Britannica