APA aipamena

Christopherson, P. (1975). An advance English Grammer. Macmillan.

Chicago Style aipamena

Christopherson, P. An Advance English Grammer. London: Macmillan, 1975.

MLA aipamena

Christopherson, P. An Advance English Grammer. Macmillan, 1975.