APA-viite

Langan, J. (2008). English Essential. What every College Student Needs to Know about Grammar, Punctuation, and Usage. Mcgaw - Hill.

Chicago-tyylinen lähdeviittaus

Langan, John. English Essential. What Every College Student Needs to Know About Grammar, Punctuation, and Usage. Mcgaw - Hill, 2008.

MLA-viite

Langan, John. English Essential. What Every College Student Needs to Know About Grammar, Punctuation, and Usage. Mcgaw - Hill, 2008.

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