Cita APA (7a ed.)

Quirk, R., & Greenbaum, S. (1974). A University grammar of english: Workbook (1st edition.). Longman.

Cita Chicago Style (17a ed.)

Quirk, Randolph, y Sidney Greenbaum. A University Grammar of English: Workbook. 1st edition. London: Longman, 1974.

Cita MLA (8a ed.)

Quirk, Randolph, y Sidney Greenbaum. A University Grammar of English: Workbook. 1st edition. Longman, 1974.