Bruun, H. H. (1992). Changes in species composition of the moth and butterfly fauna on Houtskär in the archipelago of SW Finland during the years of 1954 - 1989 (Lepidoptera: Hesperiidae-Noctuidae). Åbo Akad. Förl.
Chicago Style (17th ed.) CitationBruun, Henrik H. Changes in Species Composition of the Moth and Butterfly Fauna on Houtskär in the Archipelago of SW Finland During the Years of 1954 - 1989 (Lepidoptera: Hesperiidae-Noctuidae). Åbo: Åbo Akad. Förl, 1992.
MLA (9th ed.) CitationBruun, Henrik H. Changes in Species Composition of the Moth and Butterfly Fauna on Houtskär in the Archipelago of SW Finland During the Years of 1954 - 1989 (Lepidoptera: Hesperiidae-Noctuidae). Åbo Akad. Förl, 1992.
Warning: These citations may not always be 100% accurate.