Gravity: Pearson New International Edition: An Introduction to Einstein's General Relativity by James B Hartle English | ISBN: 1292039140 | 616 pages | PDF | 3 Oct. 2013 | 13 Mb
Gravity, Black Holes, and the Very Early Universe: An Introduction to General Relativity and Cosmology by Tai L. Chow English | 2007 | ISBN: 0387736298 | 296 pages | PDF | 4.48 MB