APA-referens

Williams, H. M. (1991). An essential english grammar with usage and composition. Calicut University.

Chicago-stil citat

Williams, H. M. An Essential English Grammar with Usage and Composition. Kozhikode: Calicut University, 1991.

MLA-referens

Williams, H. M. An Essential English Grammar with Usage and Composition. Calicut University, 1991.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.