D.Van Dalen. (1981). Brouwer's Cambridge lectures on intuitionism. C.U.
Cita Chicago (17th ed.)D.Van Dalen. Brouwer's Cambridge Lectures on Intuitionism. Cambridge: C.U, 1981.
Cita MLA (9th ed.)D.Van Dalen. Brouwer's Cambridge Lectures on Intuitionism. C.U, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.