Παραπομπή APA

Hammer, P. C. (1969). Advances in mathematical systems theory. University Park: Pennsylvania State University Press.

Παραπομπή Chicago Style

Hammer, Preston C. Advances in Mathematical Systems Theory. University Park: Pennsylvania State University Press, 1969.

Παραπομπή MLA

Hammer, Preston C. Advances in Mathematical Systems Theory. University Park: Pennsylvania State University Press, 1969.

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