The Science of Aspects by Patricia M. Ball
1971. 163 pages. This is an ex-Library book. Blue jacket over green cloth with gilt lettering. Expected library inserts, stamps and inscriptions. Pages are in good condition with a firm binding. Endpapers and page edges are lightly tanned and foxed. Boards are a little rub worn, slight shelf wear to corners, spine and edges. Corners are a little bumped. Spine ends are mildly crushed. Light wear to unclipped dust jacket with tears, nicks and creases to spine, edge and corners.