Published by Berlin, Springer-Verlag, 1970
Seller: Hammer Mountain Book Halls, ABAA, Schenectady, NY, U.S.A.
Softcover. Paper layer worn at top end of backstrip; a few small spots on rear cover; pages faintly toned; previous owner's name and embossed ownership stamp on title page; otherwise very good condition. . 119p. (Lecture Notes in Mathematics, no. 140).