Daniels, P. (2005). Human geography: Issues for the 21st century. Pearson Education.
Chicago Style aipamenaDaniels, Peter. Human Geography: Issues for the 21st Century. Delhi: Pearson Education, 2005.
MLA aipamenaDaniels, Peter. Human Geography: Issues for the 21st Century. Pearson Education, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.