APA (7th ed.) Citation

Eckersley, C. E. (1955). A modern English course for foreign students: An intermediate book (New ed., repr.). Longmans, Green and Co.

Chicago Style (17th ed.) Citation

Eckersley, C. E. A Modern English Course for Foreign Students: An Intermediate Book. New ed., repr. London [etc.]: Longmans, Green and Co, 1955.

MLA (9th ed.) Citation

Eckersley, C. E. A Modern English Course for Foreign Students: An Intermediate Book. New ed., repr. Longmans, Green and Co, 1955.