APA (7th ed.) Citation

Hamill, S. (1978). Sam Hamill's Triada: [poem]. Copper Canyon Press.

Chicago Style (17th ed.) Citation

Hamill, Sam. Sam Hamill's Triada: [poem]. Port Townsend, Wa: Copper Canyon Press, 1978.

MLA (9th ed.) Citation

Hamill, Sam. Sam Hamill's Triada: [poem]. Copper Canyon Press, 1978.

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