Παραπομπή APA

Langton, N. (1970). Rocket propulsion. University of London press.

Παραπομπή Chicago Style

Langton, N.H. Rocket Propulsion. London: University of London press, 1970.

Παραπομπή MLA

Langton, N.H. Rocket Propulsion. University of London press, 1970.