APA (7th ed.) Citation

Sombroek, W. G. (1966). Amazon soils: A reconnaissance of the soils of the Brazilian Amazon region. Centre for Agricultural Publications and Documentation.

Chicago Style (17th ed.) Citation

Sombroek, Wim G. Amazon Soils: A Reconnaissance of the Soils of the Brazilian Amazon Region. Wageningen: Centre for Agricultural Publications and Documentation, 1966.

MLA (9th ed.) Citation

Sombroek, Wim G. Amazon Soils: A Reconnaissance of the Soils of the Brazilian Amazon Region. Centre for Agricultural Publications and Documentation, 1966.