APA (7th ed.) Citation

Marais, W. (1980). Notes on Tulipa (Liliaceae) ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Marais, W. Notes on Tulipa (Liliaceae). [Sonderdr.]. 1980.

MLA (9th ed.) Citation

Marais, W. Notes on Tulipa (Liliaceae). [Sonderdr.]. 1980.

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