APA (7th ed.) Citation

Grenfell, D. (1990). Hosta: The flowering foliage plant. Timber Press.

Chicago Style (17th ed.) Citation

Grenfell, Diana. Hosta: The Flowering Foliage Plant. Portland, Oregon: Timber Press, 1990.

MLA (9th ed.) Citation

Grenfell, Diana. Hosta: The Flowering Foliage Plant. Timber Press, 1990.

Warning: These citations may not always be 100% accurate.