Rutley, F., Read, H. H., & Holloway, G. T. (1921). Elements of mineralogy (21st ed., (corr.).). Thos. Murby & Co. [etc.].
Chicago Style (17th ed.) CitationRutley, Frank, H. H. Read, and George T. Holloway. Elements of Mineralogy. 21st ed., (corr.). London [etc.]: Thos. Murby & Co. [etc.], 1921.
MLA (9th ed.) CitationRutley, Frank, et al. Elements of Mineralogy. 21st ed., (corr.). Thos. Murby & Co. [etc.], 1921.
Warning: These citations may not always be 100% accurate.