APA (7th ed.) Citation

Butler, R. (2001). The effect of midsole hardness on propulsion during running performance. [publisher not identified].

Chicago Style (17th ed.) Citation

Butler, Robert. The Effect of Midsole Hardness on Propulsion During Running Performance. [Place of publication not identified]: [publisher not identified], 2001.

MLA (9th ed.) Citation

Butler, Robert. The Effect of Midsole Hardness on Propulsion During Running Performance. [publisher not identified], 2001.

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