Kipphardt, H., & Spiers, R. (1967). In the Matter of J.Robert OppenHeimer. Methuen.
Dyfyniad Arddull ChicagoKipphardt, Heinar, and Ruth Spiers. In the Matter of J.Robert OppenHeimer. London: Methuen, 1967.
Dyfyniad MLAKipphardt, Heinar, and Ruth Spiers. In the Matter of J.Robert OppenHeimer. Methuen, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.