1. Environmental issues in the 1990
پدیدآورنده : edited by A. M. Mannion and S. R. Bowlby
کتابخانه: (Semnan)
موضوع : ، Human ecology,، Environmental protection,، Economic development - Environmental aspects
رده :
GF
41
.
E59
2. Environmental issues in the 1990s
پدیدآورنده : edited by A.M. Mannion and S.R. Bowlby
کتابخانه: Library of College of Science University of Tehran (Tehran)
موضوع : ، Human ecology,، Environmental protection,Environmental aspects ، Economic development
رده :
GF
41
.
E53
1992