APA
Hornby A.S, . (1975). Guide to Patterw and Usage in Eng. : Delhi: oxford Unipress.
Chicago
Hornby A.S, . 1975. Guide to Patterw and Usage in Eng. : Delhi: oxford Unipress.
Harvard
Hornby A.S, . (1975). Guide to Patterw and Usage in Eng. : Delhi: oxford Unipress.
MLA
Hornby A.S, . Guide to Patterw and Usage in Eng. : Delhi: oxford Unipress. 1975.