Philippines (Republic). Department of Commerce and Industry. (1952). Philippine yearbook of commerce and industry. [s.n.].
Chicago-referens (17:e uppl.)Philippines (Republic). Department of Commerce and Industry. Philippine Yearbook of Commerce and Industry. Manila: [s.n.], 1952.
MLA-referens (9:e uppl.)Philippines (Republic). Department of Commerce and Industry. Philippine Yearbook of Commerce and Industry. [s.n.], 1952.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.