Não informado. (1890). Entomological News and Proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia. Academy of Natural Sciences of Philadelphia, Entomological Section.
Chicago-viite (17. p.)Não informado. Entomological News and Proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia. Philadelphia, Pa: Academy of Natural Sciences of Philadelphia, Entomological Section, 1890.
MLA-viite (8. p.)Não informado. Entomological News and Proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia. Academy of Natural Sciences of Philadelphia, Entomological Section, 1890.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.