Doumont, J. (2009). Trees, Maps, and Theorems: Effective communication for rational minds. Principiae.
Chicago-referens (17:e uppl.)Doumont, Jean-luc. Trees, Maps, and Theorems: Effective Communication for Rational Minds. Kraainem, Belgium: Principiae, 2009.
MLA-referens (9:e uppl.)Doumont, Jean-luc. Trees, Maps, and Theorems: Effective Communication for Rational Minds. Principiae, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.