APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (8:e uppl.)

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