@book{13521,
	author = {Ball, Desmond||Tamura, Keiko},
	title = {Breaking Japanese Diplomatic Codes: David Sissons and D Special Section during the Second World War},
	url = {https://library.oapen.org/bitstream/20.500.12657/33529/1/459995.pdf||https://library.oapen.org/bitstream/20.500.12657/33529/1/459995.pdf}
}