APA (7th ed.) Citation

Koopowitz, H., Howe, M., & Christenhusz, M. (2017). Nomenclatural notes on some autumn flowering daffodils (Narcissus, Amaryllidaceae).

Chicago Style (17th ed.) Citation

Koopowitz, H., M. Howe, and Maarten Christenhusz. Nomenclatural Notes on Some Autumn Flowering Daffodils (Narcissus, Amaryllidaceae). 2017.

MLA (9th ed.) Citation

Koopowitz, H., et al. Nomenclatural Notes on Some Autumn Flowering Daffodils (Narcissus, Amaryllidaceae). 2017.