Gaya APA
Field, Barry C, Field, Martha K. (2002).
Environmental economics : an introduction (3e).
Boston:
McGraw Hill.
Gaya Chicago
Field, Barry C, Field, Martha K.
Environmental economics : an introduction.
3e
Boston:
McGraw Hill,
2002.
Buku.
Gaya MLA
Field, Barry C, Field, Martha K.
Environmental economics : an introduction.
3e
Boston:
McGraw Hill,
2002.
Buku.
Gaya Turabian
Field, Barry C, Field, Martha K.
Environmental economics : an introduction.
3e
Boston:
McGraw Hill,
2002.
Buku.