Sumulong, J., Aguinaldo, E., & Alejandrino, J. M. (1937). Briefs on economic problems of the Philippines. [s.n.].
Chicago-viite (17. p.)Sumulong, Juan, Emilio Aguinaldo, ja Jose Magdangal Alejandrino. Briefs on Economic Problems of the Philippines. Manila: [s.n.], 1937.
MLA-viite (8. p.)Sumulong, Juan, et al. Briefs on Economic Problems of the Philippines. [s.n.], 1937.
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