Venkataraman, G. (1992). Why are things the way they are? Universities Press.
Dyfyniad Arddull ChicagoVenkataraman, G. Why Are Things the Way They Are? Hyderabad: Universities Press, 1992.
Dyfyniad MLAVenkataraman, G. Why Are Things the Way They Are? Universities Press, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.