Great Britain. Indian Political Intelligence, British Library. Oriental and India Office Collections, & Farrington, A. (2000). Indian Political Intelligence (IPI) files, 1912-1950. IDC.
Chicago-viite (17. p.)Great Britain. Indian Political Intelligence, British Library. Oriental and India Office Collections, ja Anthony Farrington. Indian Political Intelligence (IPI) Files, 1912-1950. Leiden, The Netherlands: IDC, 2000.
MLA-viite (8. p.)Great Britain. Indian Political Intelligence, et al. Indian Political Intelligence (IPI) Files, 1912-1950. IDC, 2000.
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