Open University. (1973). Fundamental groups: Fixed-point theorems. Open University Press.
Chicago Style (17th ed.) CitationOpen University. Fundamental Groups: Fixed-point Theorems. Αθήνα: Open University Press, 1973.
MLA (8th ed.) CitationOpen University. Fundamental Groups: Fixed-point Theorems. Open University Press, 1973.
Warning: These citations may not always be 100% accurate.