Παραπομπή APA

Gibbs-Smith, C. (1975). Early flying machines 1799-1909. Eyre Methuen.

Παραπομπή Chicago Style

Gibbs-Smith, Charles. Early Flying Machines 1799-1909. London: Eyre Methuen, 1975.

Παραπομπή MLA

Gibbs-Smith, Charles. Early Flying Machines 1799-1909. Eyre Methuen, 1975.