Citazione Stile APA (7a Edizione)

Langan, J. (1998). Reading and study skills (6th ed.). McGraw-Hill Higher Education.

Citazione stile Chigago Style (17a edizione)

Langan, John. Reading and Study Skills. 6th ed. New York, NY : Bostom: McGraw-Hill Higher Education, 1998.

Citatione MLA (8a ed.)

Langan, John. Reading and Study Skills. 6th ed. McGraw-Hill Higher Education, 1998.