Citazione Stile APA (7a Edizione)

Andres, D. (1950). Comments on the Bell Report as it relates to the mining industry, and recommendations. [s.n.].

Citazione stile Chigago Style (17a edizione)

Andres, Demetrio. Comments on the Bell Report as It Relates to the Mining Industry, and Recommendations. Manila: [s.n.], 1950.

Citatione MLA (9a ed.)

Andres, Demetrio. Comments on the Bell Report as It Relates to the Mining Industry, and Recommendations. [s.n.], 1950.