Padilla, J. E., Tolosa, M. O., & Tongson, E. E. (2006). Sustainability assessment: Of trade-related policies : a practical guide.
Chicago-viite (17. p.)Padilla, Jose E., Marilyn O. Tolosa, ja Edgardo E. Tongson. Sustainability Assessment: Of Trade-related Policies : A Practical Guide. Quezon City, WWF-Philippines, 2006.
MLA-viite (9. p.)Padilla, Jose E., et al. Sustainability Assessment: Of Trade-related Policies : A Practical Guide. 2006.
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