APA

Null K. C., Cook D., . (2007). How to Write a Sentence. Cario: Dar Al-Farouk.

Chicago

Null Kathleen Christopher, Cook David, . 2007. How to Write a Sentence. Cario: Dar Al-Farouk.

Harvard

Null K. C., Cook D., . (2007). How to Write a Sentence. Cario: Dar Al-Farouk.

MLA

Null Kathleen Christopher, Cook David, . How to Write a Sentence. Cario: Dar Al-Farouk. 2007.