1. The twinning and fertility paradox;Allen,1981
2. The development of extraversion and ability: an analysis of Rushton's longitudinal data;Anthony;Br. J. educ. Psychol.,1977
3. Race;Baker,1974
4. Sociobiology and Behavior;Barash,1982
5. Personality and sexuality;Barnes;Person. individ. Diff.,1984