Liberal Dictionary English Dictionary
< /məˈkin/, 1860–1944, U.S. psychologist, educator, and editor.
Raymond Cattell – Wikipedia, la enciclopedia libre
Human Intelligence: Raymond B. Cattell
RAYMOND CATTELL: SU VIDA Y SU OBRA EN POCAS PALABRAS – Psicología al Día
The Big 5 Traits | in Chapter 11: Personality