Gaya APA

Acid rain research : do we have enough answer? [sumber elektronik] / editors by G.J. Heij, J.W. Erisman. (1994). : .

Gaya MLA

Acid rain research : do we have enough answer? [sumber elektronik] / editors by G.J. Heij, J.W. Erisman. . : , 1994. Text.