Bertrand, A. (1920). The Chilean Nitrate Industry: Technology and Economics (1a. ed.). Imprimerie de Vaugirard.
Tohutoru Kātū Chicago (17th ed.)Bertrand, Alejandro. The Chilean Nitrate Industry: Technology and Economics. 1a. ed. París: Imprimerie de Vaugirard, 1920.
Tohutoro MLA (9th ed.)Bertrand, Alejandro. The Chilean Nitrate Industry: Technology and Economics. 1a. ed. Imprimerie de Vaugirard, 1920.
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