Cita APA (7th ed.)
Riggenbach, H. (1993). Grammar dimensions: Form, meaning and use. Wadsworth.
Cita Chicago (17th ed.)
Riggenbach, Heidi. Grammar Dimensions: Form, Meaning and Use. Boston: Wadsworth, 1993.
Cita MLA (9th ed.)
Riggenbach, Heidi. Grammar Dimensions: Form, Meaning and Use. Wadsworth, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.