APA (7th ed.) Citation

Riley, N. D. (1964). A brief historical sketch. [publisher not identified].

Chicago Style (17th ed.) Citation

Riley, N. D. A Brief Historical Sketch. London: [publisher not identified], 1964.

MLA (9th ed.) Citation

Riley, N. D. A Brief Historical Sketch. [publisher not identified], 1964.

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