Digital Copy of the book source: Archive.org – https://archive.org/details/vniversaearchite00rieg/page/n314/mode/thumb Title: Universae Architecturae Civilis Elementa Author: Christian Rieger Publication Date: 1756
Digital Copy of the book source: Archive.org – https://archive.org/details/vniversaearchite00rieg/page/n314/mode/thumb Title: Universae Architecturae Civilis Elementa Author: Christian Rieger Publication Date: 1756