APA:
Zwick, Peter (2011). Polymorphism and taxonomic problems in the Perlodes microcephalus group (Plecoptera: Perlodidae); Perlodes mortoni removed from synonymy.
Illiesia, volume 7, issue 26, str. 291-296.
URN:NBN:SI:DOC-AQIMFOU7 from http://www.dlib.si
MLA:
Zwick, Peter. "Polymorphism and taxonomic problems in the Perlodes microcephalus group (Plecoptera: Perlodidae); Perlodes mortoni removed from synonymy."
Illiesia volume 7. issue 26 (2011) str. 291-296.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-AQIMFOU7>