APA (7th ed.) Citation

Llull, R., & Peers, E. A. (1926). The Tree of love. Society for Promoting Christian Knowledge.

Chicago Style (17th ed.) Citation

Llull, Ramon, and E. Allison Peers. The Tree of Love. London [etc.]: Society for Promoting Christian Knowledge, 1926.

MLA (9th ed.) Citation

Llull, Ramon, and E. Allison Peers. The Tree of Love. Society for Promoting Christian Knowledge, 1926.