Cita APA (7a ed.)

(1978). Basic English for Science: Cassette 4. Oxford, Oxford University Press, 1978.

Cita Chicago Style (17a ed.)

Basic English for Science: Cassette 4. Oxford, Oxford University Press, 1978, 1978.

Cita MLA (9a ed.)

Basic English for Science: Cassette 4. Oxford, Oxford University Press, 1978, 1978.