Gaya APA

1990, E, I, I, T. (1992). Environmental issues in the 1990 / Edited; A.M. Mannion and S.R. Bowlby . : .

Gaya MLA

1990, Environmental, Issues, In, The. "Environmental issues in the 1990 / Edited; A.M. Mannion and S.R. Bowlby". : , 1992. Ekonomi Syariah.