Cita APA (7a ed.)

General Post Office. (1957). Piezoelectricity. H.M.S.O.

Cita Chicago Style (17a ed.)

General Post Office. Piezoelectricity. London: H.M.S.O, 1957.

Cita MLA (9a ed.)

General Post Office. Piezoelectricity. H.M.S.O, 1957.