APA
Hagerstrand T., Hagerstrand T. (., . (1985). Identification of progress in learning. London: Cambridge University Press.
Chicago
Hagerstrand T, Hagerstrand T (ed.), . 1985. Identification of progress in learning. London: Cambridge University Press.
Harvard
Hagerstrand T., Hagerstrand T. (., . (1985). Identification of progress in learning. London: Cambridge University Press.
MLA
Hagerstrand T, Hagerstrand T (ed.), . Identification of progress in learning. London: Cambridge University Press. 1985.