APA (7th ed.) Citation

Hackel, E. (1896). The true grasses. Constable.

Chicago Style (17th ed.) Citation

Hackel, Eduard. The True Grasses. London: Constable, 1896.

MLA (9th ed.) Citation

Hackel, Eduard. The True Grasses. Constable, 1896.

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