APA (7th ed.) Citation

Heaton, J. B., & Stocks, J. P. (1973). Graded English test papers. Longman.

Chicago Style (17th ed.) Citation

Heaton, John B., and J. P. Stocks. Graded English Test Papers. London: Longman, 1973.

MLA (9th ed.) Citation

Heaton, John B., and J. P. Stocks. Graded English Test Papers. Longman, 1973.