एपीए उद्धरण

Gerkema, M. P., Davies, W. I. L., Foster, R. G., Menaker, M., & Hut, R. A. (2013). The nocturnal bottleneck and the evolution of activity patterns in mammals. The Royal Society.

शिकागो स्टाइल उद्धरण

Gerkema, Menno P., Wayne I. L. Davies, Russell G. Foster, Michael Menaker, और Roelof A. Hut. The Nocturnal Bottleneck and the Evolution of Activity Patterns in Mammals. The Royal Society, 2013.

एमएलए उद्धरण

Gerkema, Menno P., et al. The Nocturnal Bottleneck and the Evolution of Activity Patterns in Mammals. The Royal Society, 2013.