APA (7th ed.) Citation

ECKERSLEY, C. E. Essential English, Book IV. Longman.

Chicago Style (17th ed.) Citation

ECKERSLEY, C. E. Essential English, Book IV. Longman.

MLA (8th ed.) Citation

ECKERSLEY, C. E. Essential English, Book IV. Longman.

Warning: These citations may not always be 100% accurate.