APA (7th ed.) Citation

Poetry Book Society & Osborne, C. (1967). Twelve poets. The Society.

Chicago Style (17th ed.) Citation

Poetry Book Society and Charles Osborne. Twelve Poets. London: The Society, 1967.

MLA (9th ed.) Citation

Poetry Book Society and Charles Osborne. Twelve Poets. The Society, 1967.

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