APA (7th ed.) Citation

Tyler, P., Boultenhouse, C., & Fournier, M. (1994). The granite butterfly: A poem in nine cantos. National Poetry Foundation.

Chicago Style (17th ed.) Citation

Tyler, Parker, Charles Boultenhouse, and Michael Fournier. The Granite Butterfly: A Poem in Nine Cantos. Orono, ME: National Poetry Foundation, 1994.

MLA (9th ed.) Citation

Tyler, Parker, et al. The Granite Butterfly: A Poem in Nine Cantos. National Poetry Foundation, 1994.