APA (7th ed.) Citation

Gatford, J. D., & Pitman, C. (1979). Calculator exercises for year nine. Longman Cheshire.

Chicago Style (17th ed.) Citation

Gatford, J. D., and C. Pitman. Calculator Exercises for Year Nine. Melbourne: Longman Cheshire, 1979.

MLA (9th ed.) Citation

Gatford, J. D., and C. Pitman. Calculator Exercises for Year Nine. Longman Cheshire, 1979.

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