APA
"United Nations E. A. S. C. F. A. A. T. P., "United Nations E. A. S. C. F. A. A. T. P., . (1984). Updated guide book in biogas development. New: York United Nations U S A.
Chicago
"United Nations Economic And Social Commission For Asia And The Pacific", "United Nations Economic And Social Commission For Asia And The Pacific", . 1984. Updated guide book in biogas development. New: York United Nations U S A.
Harvard
"United Nations E. A. S. C. F. A. A. T. P., "United Nations E. A. S. C. F. A. A. T. P., . (1984). Updated guide book in biogas development. New: York United Nations U S A.
MLA
"United Nations Economic And Social Commission For Asia And The Pacific", "United Nations Economic And Social Commission For Asia And The Pacific", . Updated guide book in biogas development. New: York United Nations U S A. 1984.
