Parijs, P. V. (1981). Evolutionary explanation in the social sciences: An emerging paradigm.
Dyfyniad Arddull ChicagoParijs, Philippe Van. Evolutionary Explanation in the Social Sciences: An Emerging Paradigm. London, Tavistock, 1981.
Dyfyniad MLAParijs, Philippe Van. Evolutionary Explanation in the Social Sciences: An Emerging Paradigm. 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.