New York: Consultants Bureau, 1965. Hardcover. x, 240p., running text with swarming math formulae on every quarto leaf, hardbound in blue papered boards enclosed in badly chipped and rubbed dust jacket. The casebinding, the book itself, is quite edgeworn with minute roughings-up at head, tail and corner-tips and severe marginal sunning. Hinges are perfectly sound, endsheets and entire textblock, sound, clean and unmarked, a good reading copy. FYI, none of the chipping of dj has affected dj texts (prefatory material & publisher's ads for other Russian physics texts in English).