Gaya APA

Arruda, G, P, A, I, A, A, I. (1989). Paraconsistent Logic . : Philosophia Verlag Gmbh.

Gaya MLA

Arruda, Graham, Priest;, Ayda, I., Arruda;, Ayda, Ignez. "Paraconsistent Logic". : Philosophia Verlag Gmbh, 1989. Text.