Cita APA (7th ed.)

Bernhardt, P. (1970). PEBE: Mechanik Baukasten. Paul Bernhardt.

Cita Chicago (17th ed.)

Bernhardt, Paul. PEBE: Mechanik Baukasten. Bad Kösen: Paul Bernhardt, 1970.

Cita MLA (8th ed.)

Bernhardt, Paul. PEBE: Mechanik Baukasten. Paul Bernhardt, 1970.