APA (7th ed.) Citation

Portland Society of Natural History (Me.). (1892). The Portland catalogue of Maine plants (2nd ed.). Portland society of natural history.

Chicago Style (17th ed.) Citation

Portland Society of Natural History (Me.). The Portland Catalogue of Maine Plants. 2nd ed. Portland: Portland society of natural history, 1892.

MLA (8th ed.) Citation

Portland Society of Natural History (Me.). The Portland Catalogue of Maine Plants. 2nd ed. Portland society of natural history, 1892.

Warning: These citations may not always be 100% accurate.