1. Preserving nature in the national parks: a history
پدیدآورنده : / Richard West Sellars
کتابخانه: Central Library and Document Center of Arak University (Markazi)
موضوع : National parks and reserves -- United States -- Management -- History,Nature conservation -- United States -- History,Natural resources -- United States -- Management -- History
رده :
333
.
7830973
S467p
2. Preserving nature in the national parks :a history
پدیدآورنده : /Richard West Sellars.
کتابخانه: Library of Graduate Faculty of Environment of Tehran Univerdity (Tehran)
موضوع : National parks and reserves--Management--History.--United States,Nature conservation--History.--United States,Natural resources--Management--History.--United States,United States.
رده :
SB
482
.
A4S44
2009
