APA (7th ed.) Citation

Usher, G. (1984). A dictionary of plants. CBS Publishers.

Chicago Style (17th ed.) Citation

Usher, George. A Dictionary of Plants. Delhi: CBS Publishers, 1984.

MLA (9th ed.) Citation

Usher, George. A Dictionary of Plants. CBS Publishers, 1984.

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