Penggayaan APA

FIELD, Barry C. (2006). Environmental economics : (4th.ed). New York: McGraw Hill.

Chicago Style

FIELD, Barry C. Environmental economics :. 4th.ed New York: McGraw Hill, 2006. Buku.

MLA Style

FIELD, Barry C. Environmental economics :. 4th.ed New York: McGraw Hill, 2006. Buku.

Turabian Style

FIELD, Barry C. Environmental economics :. 4th.ed New York: McGraw Hill, 2006. Buku.