Cita APA (7a ed.)

Eastwood, J., & Mackin, R. (1982). A basic english grammar. Oxford University Press.

Cita Chicago Style (17a ed.)

Eastwood, John, y Ronald Mackin. A Basic English Grammar. Oxford: Oxford University Press, 1982.

Cita MLA (9a ed.)

Eastwood, John, y Ronald Mackin. A Basic English Grammar. Oxford University Press, 1982.