APA (7th ed.) Citation

Ward, A. G. (1938). The nature of crystals. Blackie.

Chicago Style (17th ed.) Citation

Ward, A. G. The Nature of Crystals. London: Blackie, 1938.

MLA (8th ed.) Citation

Ward, A. G. The Nature of Crystals. Blackie, 1938.

Warning: These citations may not always be 100% accurate.