Cita APA (7a ed.)
Hämäläinen, L. (2010). Stopover duration and field site selection by whooper swan (Cygnus cygnus) at Lake Tysslingen, Sweden. SLU/Dept. of Ecology.
Cita Chicago Style (17a ed.)
Hämäläinen, Louise. Stopover Duration and Field Site Selection by Whooper Swan (Cygnus Cygnus) at Lake Tysslingen, Sweden. SLU/Dept. of Ecology, 2010.
Cita MLA (9a ed.)
Hämäläinen, Louise. Stopover Duration and Field Site Selection by Whooper Swan (Cygnus Cygnus) at Lake Tysslingen, Sweden. SLU/Dept. of Ecology, 2010.
Precaución: Estas citas no son 100% exactas.