Walker.Jearl Principles of Physics : Halliday | Resnick / Jearl Walker - 9th ed. - River Street, Hoboken, NJ : John Wiley & Son, c2011. - xxii, 1270 p. : ill., Col. ; 28 cm. Includes bibliography reference & index. ISBN: 9780470561584 LC Class. No.: QC 23 / .W25 2011