Introductory Chemistry 7th Edition, Nivaldo J. Tro, 013790133X, 0138095590, 9780137901333, 9780138095598, 9780137901364, 9780138198411, 9780138095604, 978-0137901333, 978-0138095598, 978-0137901364, 978-0138198411, 978-0138095604