Παραπομπή APA

Grenander, U. (2012). Calculus of ideas: Mathematical study of human thought. World scientific publishing.

Παραπομπή Chicago Style

Grenander, Ulf. Calculus of Ideas: Mathematical Study of Human Thought. Singapore: World scientific publishing, 2012.

Παραπομπή MLA

Grenander, Ulf. Calculus of Ideas: Mathematical Study of Human Thought. World scientific publishing, 2012.