Cita APA (7th ed.)

Kelley, R. L. (1990). The shaping of the American past (Fifth edition.). Prentice Hall.

Cita Chicago (17th ed.)

Kelley, Robert Lloyd. The Shaping of the American Past. Fifth edition. Englewood Cliffs, New Jersey: Prentice Hall, 1990.

Cita MLA (9th ed.)

Kelley, Robert Lloyd. The Shaping of the American Past. Fifth edition. Prentice Hall, 1990.