APA (7th ed.) Citation

Thomas, G. S. (1989). The rock garden and its plants: From grotto to alpine house. Sagapress/Timber Press.

Chicago Style (17th ed.) Citation

Thomas, Graham Stuart. The Rock Garden and Its Plants: From Grotto to Alpine House. Portland, Or.: Sagapress/Timber Press, 1989.

MLA (9th ed.) Citation

Thomas, Graham Stuart. The Rock Garden and Its Plants: From Grotto to Alpine House. Sagapress/Timber Press, 1989.