APA (7th ed.) Citation
EWALD, P. P. (1962). Fifty years of X-ray diffraction. [s.n.].
Chicago Style (17th ed.) Citation
EWALD, PETER PAUL. Fifty Years of X-ray Diffraction. [s.l.]: [s.n.], 1962.
MLA (9th ed.) Citation
EWALD, PETER PAUL. Fifty Years of X-ray Diffraction. [s.n.], 1962.
Warning: These citations may not always be 100% accurate.