This work has been selected by scholars as being groundbreaking and culturally significant and is part of the knowledge base of civilization as science treats it. This is the original work in the original form. One of 100 books so designated. A core element in any scientific/mathematics library. From the library of an acclaimed architect. 75 pages. Format 8 1/2 X 11 inches. Sorry, NO international sales. Originally published in soft cover with no jacket.