Third national environment congress : 28-29,December,1988 : abstracts.
Vyas, L. N. & others
Third national environment congress : 28-29,December,1988 : abstracts. - New Delhi Indian Environment Congress Association 1988 - ii,A-29p.,B-9p.,C-6p.
333.7 / VYA
Third national environment congress : 28-29,December,1988 : abstracts. - New Delhi Indian Environment Congress Association 1988 - ii,A-29p.,B-9p.,C-6p.
333.7 / VYA