Cita APA (7th ed.)

ebrary, Inc, Gardiner, F., & Garmson, E. (2010). Plastics and the environment. iSmithers.

Cita Chicago (17th ed.)

ebrary, Inc, Frances Gardiner, i Eleanor Garmson. Plastics and the Environment. Shawbury, U.K.: iSmithers, 2010.

Cita MLA (9th ed.)

ebrary, Inc, et al. Plastics and the Environment. iSmithers, 2010.