Cita APA (7a ed.)

Graaf, R. d. (2017). Four walls and a roof: The complex nature of a simple profession. Harvard University Press.

Cita Chicago Style (17a ed.)

Graaf, Reinier de. Four Walls and a Roof: The Complex Nature of a Simple Profession. Cambridge, Massachusetts: Harvard University Press, 2017.

Cita MLA (8a ed.)

Graaf, Reinier de. Four Walls and a Roof: The Complex Nature of a Simple Profession. Harvard University Press, 2017.