APA-referens (7:e uppl.)
Thorpe,Edgar. (2005). Course in mental ability and quantitative aptitude: For competitive examinations (2nd. ed.). TMH.
Chicago-referens (17:e uppl.)
Thorpe,Edgar. Course in Mental Ability and Quantitative Aptitude: For Competitive Examinations. 2nd. ed. New Delhi: TMH, 2005.
MLA-referens (9:e uppl.)
Thorpe,Edgar. Course in Mental Ability and Quantitative Aptitude: For Competitive Examinations. 2nd. ed. TMH, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.