Category:පරිසරවේදය

• සොයුරු ව්‍යාපෘති: විකිපීඩියා ලිපිය, Commons category, quotes, definition, textbook, course, විකිදත්ත අයිතමය.

This category is for works concerned with ecology which would usually be included in Library of Congress subclass QH540-549.5