APA (7th ed.) Citation

Gibson, M. (1976). By Stage and Cycle to Sumer.

Chicago Style (17th ed.) Citation

Gibson, McGuire. By Stage and Cycle to Sumer. 1976.

MLA (8th ed.) Citation

Gibson, McGuire. By Stage and Cycle to Sumer. 1976.

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