Gaya APA
Kahn, James. R.. (1995).
The economic approach to environmental and natural resouces .
Orlando:
Harcourt Brace & Company..
Gaya Chicago
Kahn, James. R..
The economic approach to environmental and natural resouces.
Orlando:
Harcourt Brace & Company.,
1995.
.
Gaya MLA
Kahn, James. R..
The economic approach to environmental and natural resouces.
Orlando:
Harcourt Brace & Company.,
1995.
.
Gaya Turabian
Kahn, James. R..
The economic approach to environmental and natural resouces.
Orlando:
Harcourt Brace & Company.,
1995.
.