APA aipamena

Sumulong, J., Aguinaldo, E., & Alejandrino, J. M. (1937). Briefs on economic problems of the Philippines. [s.n.].

Chicago Style aipamena

Sumulong, Juan, Emilio Aguinaldo, and Jose Magdangal Alejandrino. Briefs on Economic Problems of the Philippines. Manila: [s.n.], 1937.

MLA aipamena

Sumulong, Juan, et al. Briefs on Economic Problems of the Philippines. [s.n.], 1937.