Squire, P. S. (1968). The Third Department: The establishment and practices of the political police in the Russia of Nicholas I. University Press.
Dyfyniad Arddull ChicagoSquire, Peter Stansfield. The Third Department: The Establishment and Practices of the Political Police in the Russia of Nicholas I. Cambridge: University Press, 1968.
Dyfyniad MLASquire, Peter Stansfield. The Third Department: The Establishment and Practices of the Political Police in the Russia of Nicholas I. University Press, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.