Yarwood, John. High vacuum technique: theory, practice and properties of materials, by J. Yarwood. - 4th ed. (completely revised). - London, Chapman & Hall, 1967. - iii-x, 274 p. illus., tables, diagrs. 22 1/2 cm. Subjects--Index Terms: Vacuum technology Dewey Class. No.: 621.55 / YAR