Crozier, R. H. 1969b. Chromosome number polymorphism in an Australian ponerine ant. Canadian Journal of Genetics and Cytology 11:333-339. PDF
Crozier, R. H. 1975. Animal cytogenetics. 3. Insecta. (7) Hymenoptera. Berlin: Gebrüder Borntraeger, 95 pp.
Crozier, R. H. 1977b. Evolutionary genetics of the Hymenoptera. Annual Review of Entomology 22:263-288.
Crozier, R. H. 1979. Genetics of sociality. Pp. 223-286 in: Hermann, H. R. (ed.) 1979. Social insects. Volume 1. New York: Academic Press, xv + 437 pp.
Crozier, R. H. 1981. Genetic aspects of ant evolution. Pp. 356-370 in: Atchley, W. R.; Woodruff, D. C. (eds.) 1981. Essays in evolution and speciation in honor of M. J. D. White. Cambridge: Cambridge University Press, ix + 436 pp.
Crozier, R. H. 2006. Charting uncertainty about ant origins. Proceedings of the National Academy of Sciences of the United States of America 103:18029-18030. PDF