APA (7th ed.) Citation
Eckersley, C. (1980). Essential english for foreign students (4. rev. ed.). Longman.
Chicago Style (17th ed.) Citation
Eckersley, C.E. Essential English for Foreign Students. 4. rev. ed. London: Longman, 1980.
MLA (9th ed.) Citation
Eckersley, C.E. Essential English for Foreign Students. 4. rev. ed. Longman, 1980.
Warning: These citations may not always be 100% accurate.