Introduction to environmental studies/
Turk, J. (PhD)
Introduction to environmental studies/ - 2nd ed. - Philadelphia Saunders College Publishing 1985 - xiv; 330p. ills.
0030114683
QH541 / .T84 1985
Introduction to environmental studies/ - 2nd ed. - Philadelphia Saunders College Publishing 1985 - xiv; 330p. ills.
0030114683
QH541 / .T84 1985