APA (7th ed.) Citation

Scharff, R. F. (1912). The relation of the present plant population of the British Isles to the glacial epoch.

Chicago Style (17th ed.) Citation

Scharff, R. F. The Relation of the Present Plant Population of the British Isles to the Glacial Epoch. 1912.

MLA (9th ed.) Citation

Scharff, R. F. The Relation of the Present Plant Population of the British Isles to the Glacial Epoch. 1912.

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