APA (7th ed.) Citation

Gelderen, D. M. v., & Hoey Smith, J. R. P. v. (1992). Rhododendron portraits. Timber Press.

Chicago Style (17th ed.) Citation

Gelderen, D. M. van, and J. R. P. van Hoey Smith. Rhododendron Portraits. Portland, Or.: Timber Press, 1992.

MLA (9th ed.) Citation

Gelderen, D. M. van, and J. R. P. van Hoey Smith. Rhododendron Portraits. Timber Press, 1992.