Cita APA (7a ed.)

Varela, F. J. (1979). Principles of biological autonomy. North-Holland.

Cita Chicago Style (17a ed.)

Varela, Francisco J. Principles of Biological Autonomy. New York [etc.]: North-Holland, 1979.

Cita MLA (9a ed.)

Varela, Francisco J. Principles of Biological Autonomy. North-Holland, 1979.