APA:
Gustin, Marco (2001). A case of early breeding of grey heron Ardea cinerea in north Italy.
Acrocephalus, letnik 22, številka 104/105, str. 45-46.
URN:NBN:SI:DOC-NCHFHDH1 from http://www.dlib.si
MLA:
Gustin, Marco. "A case of early breeding of grey heron Ardea cinerea in north Italy."
Acrocephalus letnik 22. številka 104/105 (2001) str. 45-46.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-NCHFHDH1>