Fischer, T., Bloom, R., & Bloom, A. (2009). Perennial companions: 100 dazzling plant combinations for every season. Timber Press.
Cita Chicago Style (17a ed.)Fischer, Thomas, Richard Bloom, y Adrian Bloom. Perennial Companions: 100 Dazzling Plant Combinations for Every Season. Portland, Or.: Timber Press, 2009.
Cita MLA (8a ed.)Fischer, Thomas, et al. Perennial Companions: 100 Dazzling Plant Combinations for Every Season. Timber Press, 2009.
Precaución: Estas citas no son 100% exactas.