APA (7th ed.) Citation

Eckersley, C. E., & Eckersley, J. M. (1980). A comprehensive English grammar: For foreign students. Longman.

Chicago Style (17th ed.) Citation

Eckersley, C. E., and J. M. Eckersley. A Comprehensive English Grammar: For Foreign Students. London: Longman, 1980.

MLA (9th ed.) Citation

Eckersley, C. E., and J. M. Eckersley. A Comprehensive English Grammar: For Foreign Students. Longman, 1980.

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