APA Citation

ISO Standards Handbook 21. (1990). Plastics (2 edición.). Genova, Suiza: International Organization for Standardization.

Chicago Style Citation

ISO Standards Handbook 21. Plastics. 2 edición. Genova, Suiza: International Organization for Standardization, 1990.

MLA Citation

ISO Standards Handbook 21. Plastics. 2 edición. Genova, Suiza: International Organization for Standardization, 1990.

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