Cita APA (7a ed.)
Witkowska, I. (2008). Spruce quality in mixed stands. SLU/Southern Swedish Forest Research Centre.
Cita Chicago Style (17a ed.)
Witkowska, Izabela. Spruce Quality in Mixed Stands. SLU/Southern Swedish Forest Research Centre, 2008.
Cita MLA (9a ed.)
Witkowska, Izabela. Spruce Quality in Mixed Stands. SLU/Southern Swedish Forest Research Centre, 2008.
Precaución: Estas citas no son 100% exactas.