Cita APA (7th ed.)

Thorpe, E. (1989). A course in mental ability and quantitative aptitude... TMH.

Cita Chicago (17th ed.)

Thorpe, Edgar. A Course in Mental Ability and Quantitative Aptitude... New delhi: TMH, 1989.

Cita MLA (9th ed.)

Thorpe, Edgar. A Course in Mental Ability and Quantitative Aptitude... TMH, 1989.