@book{Piggott, author = {Piggott, S.}, title = {Prehistoric India, Harmondsworth (Penguin Books) 1952.}, language = {en} } @article{Piggott, author = {Piggott, S.}, title = {Prehistory and Evolutionary Theory}, series = {S. Tax, S., The Evolution of Man. Man, Culture, and Society. Vol. II of Evolution after Darwin, Chicago and London (The University of Chicago Press) 1960, pp. 85-98.}, journal = {S. Tax, S., The Evolution of Man. Man, Culture, and Society. Vol. II of Evolution after Darwin, Chicago and London (The University of Chicago Press) 1960, pp. 85-98.}, language = {en} }