APA (7th ed.) Citation

Kirkwood, R. L. (1970). Lorentz invariance in a gravitational field. [Rand Corp.].

Chicago Style (17th ed.) Citation

Kirkwood, Robert L. Lorentz Invariance in a Gravitational Field. [Santa Monica, Calif.]: [Rand Corp.], 1970.

MLA (9th ed.) Citation

Kirkwood, Robert L. Lorentz Invariance in a Gravitational Field. [Rand Corp.], 1970.