APA-referens (7:e uppl.)

Panchal, M. (2000). Standard english grammar (2nd.). Author.

Chicago-referens (17:e uppl.)

Panchal, Mohanbhai. Standard English Grammar. 2nd. Mumbai: Author, 2000.

MLA-referens (9:e uppl.)

Panchal, Mohanbhai. Standard English Grammar. 2nd. Author, 2000.