Philippines. Board of Investments. (1970). Questions and answers on foreign investments in the Philippines. Government Printing Office.
Chicago-referens (17:e uppl.)Philippines. Board of Investments. Questions and Answers on Foreign Investments in the Philippines. [Manila: Government Printing Office, 1970.
MLA-referens (9:e uppl.)Philippines. Board of Investments. Questions and Answers on Foreign Investments in the Philippines. Government Printing Office, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.