APA استشهاد

Sinclair,J McH. (1972). A Course in Spoken English: Grammar. OUP.

استشهاد بنمط شيكاغو

Sinclair,J McH. A Course in Spoken English: Grammar. London: OUP, 1972.

MLA استشهاد

Sinclair,J McH. A Course in Spoken English: Grammar. OUP, 1972.