

The Quadrilateral is a book written by Mackinnon Campbell in 1865. The book is a detailed account of the history and significance of the Quadrilateral, which was a declaration signed by representatives of the Anglican Communion, the Old Catholic Church, and the Eastern Orthodox...

The Quadrilateral is a book written by Mackinnon Campbell and first published in 1865. The book is a historical and political analysis of the Quadrilateral Alliance, a military and political agreement between Austria, Prussia, Russia, and France that was formed in 1815 after...

The Quadrilateral is a book written by Mackinnon Campbell in 1865. It is a historical and political work that discusses the formation of the Quadrilateral Alliance between Austria, Prussia, Russia, and France in the early 19th century. The book provides a detailed account of...