Cita APA (7a ed.)
Sinclair, C. (2010). Grammar: A friendly approach (2nd ed.). McGraw-Hill : Open University Press.
Cita Chicago Style (17a ed.)
Sinclair, Christine. Grammar: A Friendly Approach. 2nd ed. Berkshire, England ; New York, N.Y.: McGraw-Hill : Open University Press, 2010.
Cita MLA (9a ed.)
Sinclair, Christine. Grammar: A Friendly Approach. 2nd ed. McGraw-Hill : Open University Press, 2010.
Precaución: Estas citas no son 100% exactas.