Cita APA (7th ed.)

Fraser, W. G., & Gillam, J. N. (1972). The principles of objective testing in mathematics. Heinemann and J. N. Gillman.

Cita Chicago (17th ed.)

Fraser, W. G., i J. N. Gillam. The Principles of Objective Testing in Mathematics. London: Heinemann and J. N. Gillman, 1972.

Cita MLA (9th ed.)

Fraser, W. G., i J. N. Gillam. The Principles of Objective Testing in Mathematics. Heinemann and J. N. Gillman, 1972.