Espionage
Dictionary of Quotations from Ancient and Modern, English and Foreign Sources · 1893 · p. 5
—The spy system. Fr.
Bu kavram başka kaynaklarda da geçiyor
British Encyclopedia (1933)
The New Gresham Encyclopedia (1922)
Chamber's Twientieth Century Dictionary (1908)
Pears Shilling Cyclopedia (1898)
Chamber's Etymological of the English Language (1895)
Zell's Condensed Dictionary (1879)
Readham'da tam maddeyi gor →