Cita APA (7th ed.)

Freeman, S., & Herron, J. C. (2001). Evolutionary analysis (2nd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Freeman, Scott, i Jon C. Herron. Evolutionary Analysis. 2nd ed. Upper Saddle River, N.J: Prentice Hall, 2001.

Cita MLA (9th ed.)

Freeman, Scott, i Jon C. Herron. Evolutionary Analysis. 2nd ed. Prentice Hall, 2001.