APA (7th ed.) Citation

Carpelan, B., Born, A., & Taina, H. (1987). Room without walls: Selected poems. Forest Books.

Chicago Style (17th ed.) Citation

Carpelan, Bo, Anne Born, and Hannu Taina. Room Without Walls: Selected Poems. London ; Boston: Forest Books, 1987.

MLA (9th ed.) Citation

Carpelan, Bo, et al. Room Without Walls: Selected Poems. Forest Books, 1987.