APA Style

Langan, John. (1981). English Skill (2). : .

Chicago Style

Langan, John. English Skill. 2 : , 1981. Text.

MLA Style

Langan, John. English Skill. 2 : , 1981. Text.

Turabian Style

Langan, John. English Skill. 2 : , 1981. Print.