Cita APA (7a ed.)

Buehr, W. (1957). Railroads, today and yesterday. G.P. Putnam's Sons.

Cita Chicago Style (17a ed.)

Buehr, Walter. Railroads, Today and Yesterday. New York: G.P. Putnam's Sons, 1957.

Cita MLA (9a ed.)

Buehr, Walter. Railroads, Today and Yesterday. G.P. Putnam's Sons, 1957.