Cita APA (7a ed.)

Egli, E., & Müller, H. R. (1960). Europe from the air. Wilfred Funk, Inc.

Cita Chicago Style (17a ed.)

Egli, Emil, y Hans Richard Müller. Europe from the Air. New York: Wilfred Funk, Inc, 1960.

Cita MLA (9a ed.)

Egli, Emil, y Hans Richard Müller. Europe from the Air. Wilfred Funk, Inc, 1960.