TY - BOOK AU - Sears,Francis Weston TI - Mechanics, heat and sound T2 - Principles of physics series U1 - 530 16 PY - 1950/// [ printing 1964] CY - Cambridge, Mass. PB - Addison-Wesley Press KW - Mechanics KW - Heat KW - Sound N1 - First ed. published in 1944 as v. 1 of the author's Principles of physics; Includes index ER -