Livingstone, D. N. (1987). Nathaniel Southgate Shaler and the culture of American science. University of Alabama Press.
Dyfyniad Arddull ChicagoLivingstone, David N. Nathaniel Southgate Shaler and the Culture of American Science. Tuscaloosa: University of Alabama Press, 1987.
Dyfyniad MLALivingstone, David N. Nathaniel Southgate Shaler and the Culture of American Science. University of Alabama Press, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.