UCLA Probability Theory textbook "Elementary Probability, second edition" $60 UCLA History 8C textbook "Mesoamerican Voices" $40 UCLA textbook "Revolutionizing the Sciences" $40 UCLA textbook "Nicomachean Ethics" $40 UCLA textbook "Differential Equations with Applications and Historical Notes, second edition" $50 UCLA Differential Geometry textbook "Elements of Differential Geometry" $50 UCLA Life Science 1 Textbook "Life: the science of biology' $60 UCLA Linear Algebra textbook $50 UCLA Russian textbook "The Portable Twentieth-Century Russian Reader $40 UCLA History 8C textbook "Children of god's fire" $30 UCLA textbook "The Cradle of Life" $40