FAO 2021, 1.2. The problems associated with plastics. sfn error: no target: CITEREFFAO2021 (help)FAO (2021). «Assessment of agricultural plastics and their sustainability: A call for action» (på engelsk). ISBN978-92-5-135402-5. doi:10.4060/cb7856en.
FAO 2021, 4.2. Sources of agricultural plastics.. sfn error: no target: CITEREFFAO2021 (help)FAO (2021). «Assessment of agricultural plastics and their sustainability: A call for action» (på engelsk). ISBN978-92-5-135402-5. doi:10.4060/cb7856en.
FAO 2021, 4.4.3. Aquatic environments. sfn error: no target: CITEREFFAO2021 (help)FAO (2021). «Assessment of agricultural plastics and their sustainability: A call for action» (på engelsk). ISBN978-92-5-135402-5. doi:10.4060/cb7856en.
FAO 2021, 4.5. Consequences. sfn error: no target: CITEREFFAO2021 (help)FAO (2021). «Assessment of agricultural plastics and their sustainability: A call for action» (på engelsk). ISBN978-92-5-135402-5. doi:10.4060/cb7856en.