APA (7th ed.) Citation

Trudgill, S. (1989). Soil types: A field identification guide. Field Studies Council.

Chicago Style (17th ed.) Citation

Trudgill, Stephen. Soil Types: A Field Identification Guide. Shrewsbury, Gt. Britain: Field Studies Council, 1989.

MLA (9th ed.) Citation

Trudgill, Stephen. Soil Types: A Field Identification Guide. Field Studies Council, 1989.

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