Cowley, J. M. (1981). Diffraction physics (2nd, rev. ed.). North-Holland Pub. Co..
Dyfyniad Arddull ChicagoCowley, John. M. Diffraction Physics. 2nd, rev. ed. Amsterdam: North-Holland Pub. Co., 1981.
Dyfyniad MLACowley, John. M. Diffraction Physics. 2nd, rev. ed. North-Holland Pub. Co., 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.