APA (7th ed.) Citation

Boulton, E. H. B. (1941). British trees / by E.H.B. Boulton (2nd ed.). Black.

Chicago Style (17th ed.) Citation

Boulton, Edward Henry Brooke. British Trees / by E.H.B. Boulton. 2nd ed. Black, 1941.

MLA (9th ed.) Citation

Boulton, Edward Henry Brooke. British Trees / by E.H.B. Boulton. 2nd ed. Black, 1941.

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