Mikhail Sergeevich Gorbachev, Green Cross International (2011). “Mikhail Gorbachev: Prophet of Change : from the Cold War to a Sustainable World”, p.263, CLAIRVIEW BOOKS
Jeremy Taylor, John Wheeldon, George Herbert (1768). “Sacred Prolusions: Or, Select Pieces from Bishop Taylor and Mr. Herbert. By the Rev. John Wheeldon, ... With a Preface and a Discourse on Rev.xviii. 21. By the Editor”, p.107