Cita APA (7th ed.)

Porter, M. W. [. o. c., Spiller, R. C., & Codd, L. W. 1. [. o. c. (1951). The Barker index of crystals: A method for the identification of crystalline substances. Published by W. Heffer.

Cita Chicago (17th ed.)

Porter, Mary Winearls. [from old catalog], Reginald Charles Spiller, i Laurence William 1896- [from old catalog] Codd. The Barker Index of Crystals: A Method for the Identification of Crystalline Substances. Cambridge [Eng.]: Published by W. Heffer, 1951.

Cita MLA (9th ed.)

Porter, Mary Winearls. [from old catalog], et al. The Barker Index of Crystals: A Method for the Identification of Crystalline Substances. Published by W. Heffer, 1951.