Gaya APA
Perman, Roger, Ma, Yue, Common, Michael, Maddison, David, McGilvray, James. (2011).
Natural resource and environmental economics (4e).
Harlow:
Pearson Education Limited.
Gaya Chicago
Perman, Roger, Ma, Yue, Common, Michael, Maddison, David, McGilvray, James.
Natural resource and environmental economics.
4e
Harlow:
Pearson Education Limited,
2011.
Buku.
Gaya MLA
Perman, Roger, Ma, Yue, Common, Michael, Maddison, David, McGilvray, James.
Natural resource and environmental economics.
4e
Harlow:
Pearson Education Limited,
2011.
Buku.
Gaya Turabian
Perman, Roger, Ma, Yue, Common, Michael, Maddison, David, McGilvray, James.
Natural resource and environmental economics.
4e
Harlow:
Pearson Education Limited,
2011.
Buku.