Cita APA (7th ed.)

GREEN, J. (2010). YOUR ENVIRONMENT: RECYCLING. S.CHAND PUBLISHING.

Cita Chicago (17th ed.)

GREEN, JEN. YOUR ENVIRONMENT: RECYCLING. NEW DELHI: S.CHAND PUBLISHING, 2010.

Cita MLA (9th ed.)

GREEN, JEN. YOUR ENVIRONMENT: RECYCLING. S.CHAND PUBLISHING, 2010.