AGARWAL, T. L. (2008). SAVE PLANET REDUCE REUSE RECYCLE. PEARSON EDUCATION.
Cita Chicago (17th ed.)AGARWAL, TANYA LUTHER. SAVE PLANET REDUCE REUSE RECYCLE. DELHI: PEARSON EDUCATION, 2008.
Cita MLA (9th ed.)AGARWAL, TANYA LUTHER. SAVE PLANET REDUCE REUSE RECYCLE. PEARSON EDUCATION, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.