Cita APA (7a ed.)

Pilbeam, A., Ellis, M., & O'Driscoll, N. (1982). The economist, an English language guide ([1st publ.].). Collins.

Cita Chicago Style (17a ed.)

Pilbeam, Adrian, Mark Ellis, y Nina O'Driscoll. The Economist, an English Language Guide. [1st publ.]. London: Collins, 1982.

Cita MLA (9a ed.)

Pilbeam, Adrian, et al. The Economist, an English Language Guide. [1st publ.]. Collins, 1982.