The lectures will mostly reference the books by Thorne et al., Foot and McMurry, as seen in the Lecture Plan. However, there are many other books that will serve you just as well.
Books on Atomic Physics
A. Thorne, U. Litzén, S. Johansson, Spectrophysics, Principles and Applications, available from Media-Tryck, Sölvegatan 14 (There are a few copies in the Physics and Astronomy libraries and one reference copy is always available)
Christopher J. Foot, Atomic Physics, Oxford University Press.
Available as an e-book (A few copies and one reference are available in the Physics library)
Wolfgang Demtröder, Atoms, Molecules, and Photons, Springer (available as an e-book)
Hermann Haken, Hans Christoph Wolf, The Physics of Atoms and Quanta, Springer (available as e-book)
A few copies are also available in the Physics Library)
Books on Quantum Mechanics
Any good textbook on quantum mechanics, e.g.:
McMurry, Quantum Mechanics (available at Media-Tryck). A few copies are available from the Physics library. One reference copy is always available.
Gunnar Ohle'n, Phenomena of the Quantum World. Media-Tryck. Currently no books in the library.
A short document (in Swedish) describing the handling of unceratinties in experimental data can be found here