Citazione Stile APA (7a Edizione)

Langan, J. (2010). Reading and study skills (Ninth Edition.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Langan, John. Reading and Study Skills. Ninth Edition. Boston: McGraw-Hill, 2010.

Citatione MLA (9a ed.)

Langan, John. Reading and Study Skills. Ninth Edition. McGraw-Hill, 2010.