Não informado. Picture Sheet. Bureau of Entomology and Plant Quarantine.
Chicago-viite (17. p.)Não informado. Picture Sheet. Washington: Bureau of Entomology and Plant Quarantine.
MLA-viite (8. p.)Não informado. Picture Sheet. Bureau of Entomology and Plant Quarantine.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.