Cita APA (7a ed.)
Eastwood, J., & Mackin, R. (1990). A Basic English Grammar with Exercises: Without key edition (1.vyd4.dotlač.). Oxford University Press.
Cita Chicago Style (17a ed.)
Eastwood, John, y Ronald Mackin. A Basic English Grammar with Exercises: Without Key Edition. 1.vyd4.dotlač. Oxford: Oxford University Press, 1990.
Cita MLA (9a ed.)
Eastwood, John, y Ronald Mackin. A Basic English Grammar with Exercises: Without Key Edition. 1.vyd4.dotlač. Oxford University Press, 1990.
Precaución: Estas citas no son 100% exactas.