Cita APA (7a ed.)

Jonhson, G. R. (1930). Peru from the air. American geographical society.

Cita Chicago Style (17a ed.)

Jonhson, George R. Peru from the Air. New York: American geographical society, 1930.

Cita MLA (9a ed.)

Jonhson, George R. Peru from the Air. American geographical society, 1930.