APA (7th ed.) Citation

Heaney, S. (1990). The tree clock. Linen Hall Library.

Chicago Style (17th ed.) Citation

Heaney, Seamus. The Tree Clock. Belfast: Linen Hall Library, 1990.

MLA (9th ed.) Citation

Heaney, Seamus. The Tree Clock. Linen Hall Library, 1990.

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