Crystals and X-rays.

MLA

Lonsdale, Kathleen Y. and Edgar Fahs Smith Memorial Collection (University of Pennsylvania). Crystals and X-rays. London : G. Bell, 1948.

APA

Lonsdale, K. & Edgar Fahs Smith Memorial Collection (University of Pennsylvania). (1948). Crystals and X-rays. London : G. Bell.

Chicago

Lonsdale, Kathleen Y. and Edgar Fahs Smith Memorial Collection (University of Pennsylvania). Crystals and X-rays. London : G. Bell, 1948.