APA (7th ed.) Citation

Brown, R. L. (1957). The development and validation of a mechanical performance test. [publisher not identified].

Chicago Style (17th ed.) Citation

Brown, Robert L. The Development and Validation of a Mechanical Performance Test. [Place of publication not identified]: [publisher not identified], 1957.

MLA (9th ed.) Citation

Brown, Robert L. The Development and Validation of a Mechanical Performance Test. [publisher not identified], 1957.