APA (7th ed.) Citation

Holt, M., & Marjoram, D. T. E. (1973). Mathematics in a changing world. Heinemann Educational Books.

Chicago Style (17th ed.) Citation

Holt, Michael, and D. T. E. Marjoram. Mathematics in a Changing World. London: Heinemann Educational Books, 1973.

MLA (9th ed.) Citation

Holt, Michael, and D. T. E. Marjoram. Mathematics in a Changing World. Heinemann Educational Books, 1973.