Não informado. (2018). Proceedings of the Portland Society of Natural History. Portland Society of Natural History.
Chicagoスタイル(17版)引用形式Não informado. Proceedings of the Portland Society of Natural History. Portland, Me: Portland Society of Natural History, 2018.
MLA(8版)引用形式Não informado. Proceedings of the Portland Society of Natural History. Portland Society of Natural History, 2018.
警告: この引用は必ずしも正確ではありません.