APA (7th ed.) Citation

Hubbard, C. E. (1954). Grasses: A guide to their structure, identification, uses, and distribution in the British Isles. Penguin Books.

Chicago Style (17th ed.) Citation

Hubbard, C. E. Grasses: A Guide to Their Structure, Identification, Uses, and Distribution in the British Isles. [Harmondsworth], [Middlesex], [Baltimore]: Penguin Books, 1954.

MLA (9th ed.) Citation

Hubbard, C. E. Grasses: A Guide to Their Structure, Identification, Uses, and Distribution in the British Isles. Penguin Books, 1954.