Cita APA (7a ed.)

Hut, R. A. (2001). Natural entrainment of circadian systems: A study in the diurnal ground squirrel, Spermophilus citellus. van Denderen.

Cita Chicago Style (17a ed.)

Hut, Roelof Anne. Natural Entrainment of Circadian Systems: A Study in the Diurnal Ground Squirrel, Spermophilus Citellus. Groningen: van Denderen, 2001.

Cita MLA (9a ed.)

Hut, Roelof Anne. Natural Entrainment of Circadian Systems: A Study in the Diurnal Ground Squirrel, Spermophilus Citellus. van Denderen, 2001.