APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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