Tohutoro APA (7th ed.)

Betts, W. B. (1991). Biodegradation: Natural and synthetic materials. Springer-Verlag.

Tohutoru Kātū Chicago (17th ed.)

Betts, Walter Bernard. Biodegradation: Natural and Synthetic Materials. Berlín: Springer-Verlag, 1991.

Tohutoro MLA (9th ed.)

Betts, Walter Bernard. Biodegradation: Natural and Synthetic Materials. Springer-Verlag, 1991.