Philippines. Bureau of Agricultural Economics. (1971). A report on the integrated agricultural surveys for the crop year ending June 30, 1970. s.n.].
Chicago-referens (17:e uppl.)Philippines. Bureau of Agricultural Economics. A Report on the Integrated Agricultural Surveys for the Crop Year Ending June 30, 1970. [Quezon City: s.n.], 1971.
MLA-referens (9:e uppl.)Philippines. Bureau of Agricultural Economics. A Report on the Integrated Agricultural Surveys for the Crop Year Ending June 30, 1970. s.n.], 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.