Παραπομπή APA

Simmons, B., & Barnetson, A. (1994). Recycling of plastics packaging-an update: A literature review. Surrey: Pira International.

Παραπομπή Chicago Style

Simmons, Brian, and Andrew Barnetson. Recycling of Plastics Packaging-an Update: A Literature Review. Surrey: Pira International, 1994.

Παραπομπή MLA

Simmons, Brian, and Andrew Barnetson. Recycling of Plastics Packaging-an Update: A Literature Review. Surrey: Pira International, 1994.

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