1. World directory of environmental organizations: a handbook of national and international organizations and programs-governmental and non-governmental-concerned with protecting the Earth's resources
المؤلف: edited by Thaddeus C. Trzyna and Roberta Childers
المکتبة: کتابخانه مرکزی و مرکز اطلاع رسانی دانشگاه فردوسی مشهد (خراسان رضوی)
موضوع: Directories - Periodicals ، Conservation of natural resources,Directories - Periodicals ، Environmental protection
رده :
S
920
.
W67
1992
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