APA (7th ed.) Citation

Druce, G. C., & Lumb, D. (1924). Euphrasia atroviolacea nov. sp. and Euphrasia variabilis nov. sp: Blytt, on Ben Lawers ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Druce, G. Claridge, and D. Lumb. Euphrasia Atroviolacea Nov. Sp. and Euphrasia Variabilis Nov. Sp: Blytt, on Ben Lawers. [Sonderdr.]. 1924.

MLA (9th ed.) Citation

Druce, G. Claridge, and D. Lumb. Euphrasia Atroviolacea Nov. Sp. and Euphrasia Variabilis Nov. Sp: Blytt, on Ben Lawers. [Sonderdr.]. 1924.

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