Gaya APA

Ruf, T., Geiser, F. (2015). Daily torpor and hibernation in birds and mammals ((2015), 90, pp. 891–926). Austria: John Wiley & Sons Ltd.

Gaya MLA

Ruf, Thomas., Geiser, Fritz. "Daily torpor and hibernation in birds and mammals". (2015), 90, pp. 891–926 Austria: John Wiley & Sons Ltd, 2015. e-journal.