Hilton, P. J. (1965). Homotopy theory and duality. Nelson.
Chicago Style aipamenaHilton, Peter John. Homotopy Theory and Duality. London: Nelson, 1965.
MLA aipamenaHilton, Peter John. Homotopy Theory and Duality. Nelson, 1965.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.