Cita APA (7a ed.)

Berthoff, W. (1994). American Trajectories: Authors and Readings, 1790-1970. Pennsylvania State University Press.

Cita Chicago Style (17a ed.)

Berthoff, Warner. American Trajectories: Authors and Readings, 1790-1970. University Park, Pa.: Pennsylvania State University Press, 1994.

Cita MLA (8a ed.)

Berthoff, Warner. American Trajectories: Authors and Readings, 1790-1970. Pennsylvania State University Press, 1994.