Cita APA (7a ed.)

Harshman, R., & Hannell, C. (1985). The human world: A changing place. Wiley.

Cita Chicago Style (17a ed.)

Harshman, Robert, y Christine Hannell. The Human World: A Changing Place. Toronto: Wiley, 1985.

Cita MLA (9a ed.)

Harshman, Robert, y Christine Hannell. The Human World: A Changing Place. Wiley, 1985.