Cita APA (7a ed.)

Weber, R. E. (2002). Masked dispatches: Cryptograms and cryptology in American history, 1775-1900 (2nd ed.). Center for Cryptologic History, National Security Agency.

Cita Chicago Style (17a ed.)

Weber, Ralph Edward. Masked Dispatches: Cryptograms and Cryptology in American History, 1775-1900. 2nd ed. Fort George G. Meade, Md.: Center for Cryptologic History, National Security Agency, 2002.

Cita MLA (9a ed.)

Weber, Ralph Edward. Masked Dispatches: Cryptograms and Cryptology in American History, 1775-1900. 2nd ed. Center for Cryptologic History, National Security Agency, 2002.