APA (7th ed.) Citation

Yeo, P. (1962). A study of variation Euphrasia by means of outdoor cultivation ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Yeo, Peter. A Study of Variation Euphrasia by Means of Outdoor Cultivation. [Sonderdr.]. 1962.

MLA (9th ed.) Citation

Yeo, Peter. A Study of Variation Euphrasia by Means of Outdoor Cultivation. [Sonderdr.]. 1962.

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