Philippines Islands. Bureau of Lands & Philippines. Laws, statutes, etc. (1977). Circular containing the Coal Land Law and instruction and forms pertaining to the same [microform]. Photoduplication Service, University of the Philippines Library.
Citazione stile Chigago Style (17a edizione)Philippines Islands. Bureau of Lands e statutes Philippines. Laws. Circular Containing the Coal Land Law and Instruction and Forms Pertaining to the Same [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
Citatione MLA (9a ed.)Philippines Islands. Bureau of Lands e statutes Philippines. Laws. Circular Containing the Coal Land Law and Instruction and Forms Pertaining to the Same [microform]. Photoduplication Service, University of the Philippines Library, 1977.