Cita APA (7a ed.)

Leech, G. N. (1971). Towards a semantic description of english. Longman.

Cita Chicago Style (17a ed.)

Leech, Geoffrey N. Towards a Semantic Description of English. London: Longman, 1971.

Cita MLA (9a ed.)

Leech, Geoffrey N. Towards a Semantic Description of English. Longman, 1971.