Cita APA (7a ed.)
Norton, A., & Cooper, W. Observing the Universe: A Guide to Observational Astronomy and Planetary Science. Open University ; Cambridge University.
Cita estilo Chicago (17a ed.)
Norton, Andrew, y W.A Cooper. Observing the Universe: A Guide to Observational Astronomy and Planetary Science. Milton Keynes, Inglaterra : Cambridge, Inglaterra: Open University ; Cambridge University.
Cita MLA (9a ed.)
Norton, Andrew, y W.A Cooper. Observing the Universe: A Guide to Observational Astronomy and Planetary Science. Open University ; Cambridge University.
Precaución: Estas citas no son 100% exactas.