Παραπομπή APA

Halfman, R. L. (1962). Dynamics: :systems, variation, methods and relativity. Addison - Wesley.

Παραπομπή Chicago Style

Halfman, Robert L. Dynamics: :systems, Variation, Methods and Relativity. London: Addison - Wesley, 1962.

Παραπομπή MLA

Halfman, Robert L. Dynamics: :systems, Variation, Methods and Relativity. Addison - Wesley, 1962.