Cita APA

Eckersley, C. E. 1., & Eckersley, J. M. (1971). Essential English for foreign students (Rev. ed. 1971 / by J. M. Eckersley.). London: Longman.

Citación estilo Chicago

Eckersley, C. E. 1892-1967, and John Macaulay Eckersley. Essential English for Foreign Students. Rev. ed. 1971 / by J. M. Eckersley. London: Longman, 1971.

Cita MLA

Eckersley, C. E. 1892-1967, and John Macaulay Eckersley. Essential English for Foreign Students. Rev. ed. 1971 / by J. M. Eckersley. London: Longman, 1971.