UNESCO. (1996). Nature and Resources: Vol.32, No.3, 1996. Parthenon Publishing.
Чикаго маягийн жагсаалтUNESCO. Nature and Resources: Vol.32, No.3, 1996. UK: Parthenon Publishing, 1996.
MLA ишлэлUNESCO. Nature and Resources: Vol.32, No.3, 1996. Parthenon Publishing, 1996.
Warning: These citations may not always be 100% accurate.