Tohutoro APA (7th ed.)
Russell, B. (1985). La perspectiva cientifica (1a.ed.). Biblioteca Ariel Sudamericana-Planeta (B.A.S.P).
Tohutoru Kātū Chicago (17th ed.)
Russell, Bertrand. La Perspectiva Cientifica. 1a.ed. Biblioteca Ariel Sudamericana-Planeta (B.A.S.P), 1985.
Tohutoro MLA (9th ed.)
Russell, Bertrand. La Perspectiva Cientifica. 1a.ed. Biblioteca Ariel Sudamericana-Planeta (B.A.S.P), 1985.
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