Cita APA (7th ed.)

Clark, L. H. (1967). Pure Mathematics: At advanced level. Heinemann.

Cita Chicago (17th ed.)

Clark, L. H. Pure Mathematics: At Advanced Level. London: Heinemann, 1967.

Cita MLA (9th ed.)

Clark, L. H. Pure Mathematics: At Advanced Level. Heinemann, 1967.