APA

Taubman P., Wales T. & Carnegie Commission on Higher Education. (1972). Mental ability and higher educational attainment in the 20th century. [New York: National Bureau of Economic Research.

Chicago

Taubman Paul, Wales Terence and Carnegie Commission on Higher Education. 1972. Mental ability and higher educational attainment in the 20th century. [New York: National Bureau of Economic Research.

Harvard

Taubman P., Wales T. and Carnegie Commission on Higher Education. (1972). Mental ability and higher educational attainment in the 20th century. [New York: National Bureau of Economic Research.

MLA

Taubman Paul, Wales Terence and Carnegie Commission on Higher Education. Mental ability and higher educational attainment in the 20th century. [New York: National Bureau of Economic Research. 1972.