APA (7th ed.) Citation

India Office Records & India Office Library. (1970). Sumatra factory records. [Microfilmed by] Recordak Microfilm Service [for] India Office Library.

Chicago Style (17th ed.) Citation

India Office Records and India Office Library. Sumatra Factory Records. London: [Microfilmed by] Recordak Microfilm Service [for] India Office Library, 1970.

MLA (8th ed.) Citation

India Office Records and India Office Library. Sumatra Factory Records. [Microfilmed by] Recordak Microfilm Service [for] India Office Library, 1970.