Johns Hopkins University. History of Ideas Club. (1968). Forerunners of Darwin, 1745-1859. Johns Hopkins University Press.
Dyfyniad Arddull ChicagoJohns Hopkins University. History of Ideas Club. Forerunners of Darwin, 1745-1859. Baltimore: Johns Hopkins University Press, 1968.
Dyfyniad MLAJohns Hopkins University. History of Ideas Club. Forerunners of Darwin, 1745-1859. Johns Hopkins University Press, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.