Cita APA (7th ed.)

Kemp, R. (1980). Pollution: Pupil`s book. Edward Arnold.

Cita Chicago (17th ed.)

Kemp, Richard. Pollution: Pupil`s Book. London: Edward Arnold, 1980.

Cita MLA (9th ed.)

Kemp, Richard. Pollution: Pupil`s Book. Edward Arnold, 1980.