Cita APA (7a ed.)

Palmer, H. E. (1939). A grammar of spoken english. (2a. ed.). Cambridge: W. Heffer.

Cita Chicago Style (17a ed.)

Palmer, Harold E. A Grammar of Spoken English. 2a. ed. Londres: Cambridge: W. Heffer, 1939.

Cita MLA (9a ed.)

Palmer, Harold E. A Grammar of Spoken English. 2a. ed. Cambridge: W. Heffer, 1939.