Bittles, A. H. (1996). Stress--evolutionary, biosocial and clinical perspectives: Proceedings of the thirty-first annual symposium of Galton Inst., London '94. Macmillan.
Dyfyniad Arddull ChicagoBittles, Alan H. Stress--evolutionary, Biosocial and Clinical Perspectives: Proceedings of the Thirty-first Annual Symposium of Galton Inst., London '94. London: Macmillan, 1996.
Dyfyniad MLABittles, Alan H. Stress--evolutionary, Biosocial and Clinical Perspectives: Proceedings of the Thirty-first Annual Symposium of Galton Inst., London '94. Macmillan, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.