APA (7th ed.) Citation

Gardner, H. W. (1967). A survey of the agriculture of Hertfordshire. Royal Agricultural Society of England.

Chicago Style (17th ed.) Citation

Gardner, H. W. A Survey of the Agriculture of Hertfordshire. London: Royal Agricultural Society of England, 1967.

MLA (9th ed.) Citation

Gardner, H. W. A Survey of the Agriculture of Hertfordshire. Royal Agricultural Society of England, 1967.

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