Cita APA (7th ed.)

Norrell, M. (1975). A problem for Doctor Brett. Mills and Boon.

Cita Chicago (17th ed.)

Norrell, Marjorie. A Problem for Doctor Brett. London: Mills and Boon, 1975.

Cita MLA (8th ed.)

Norrell, Marjorie. A Problem for Doctor Brett. Mills and Boon, 1975.