Grasses : a guide to their structure, identification, uses, and distribution in the British Isles.

MLA

Hubbard, Charles Edward. Grasses : a Guide to Their Structure, Identification, Uses, and Distribution In the British Isles. Revised ed. Harmondsworth: Penguin Books, 1968.

APA

Hubbard, C. Edward. (1968). Grasses : a guide to their structure, identification, uses, and distribution in the British Isles. Revised ed. Harmondsworth: Penguin Books.

Chicago

Hubbard, Charles Edward Grasses: A Guide to Their Structure, Identification, Uses, and Distribution In the British Isles. Revised ed. Harmondsworth: Penguin Books, 1968.