APA (7th ed.) Citation

Walt, T. v. d. (1963). Fixed and almost fixed points. Mathematisch Centrum.

Chicago Style (17th ed.) Citation

Walt, T. van der. Fixed and Almost Fixed Points. Amsterdam: Mathematisch Centrum, 1963.

MLA (9th ed.) Citation

Walt, T. van der. Fixed and Almost Fixed Points. Mathematisch Centrum, 1963.

Warning: These citations may not always be 100% accurate.