Cita APA

Eckersley, C. E. 1. (1969). Essential English for foreign students (Rev. ed.). London [etc.]: Longmans.

Citación estilo Chicago

Eckersley, C. E. 1892-1967. Essential English for Foreign Students. Rev. ed. London [etc.]: Longmans, 1969.

Cita MLA

Eckersley, C. E. 1892-1967. Essential English for Foreign Students. Rev. ed. London [etc.]: Longmans, 1969.