Global environment series
Discovery Pub. House
edited by C.V. Rajashekhara
Discovery Pub. House 1992 Global environment series v. 5
Available at 3 libraries
Discovery Pub. House 1992 Global environment series v. 4
Discovery Pub. House 1992 Global environment series v. 3
Discovery Pub. House 1992 Global environment series v. 2
Discovery Pub. House 1992 Global environment series v. 1