Cita APA (7a ed.)

Nichols, H. L. (1976). Moving the earth (3th. ed.). North Castle Books.

Cita Chicago Style (17a ed.)

Nichols, Herbert L. Moving the Earth. 3th. ed. Connecticut: North Castle Books, 1976.

Cita MLA (8a ed.)

Nichols, Herbert L. Moving the Earth. 3th. ed. North Castle Books, 1976.