APA
Wiebe K., . (2003). Land quality, agricultural productivity, and food security : Biophysical processes and economic choices at local, regional and global levels. UK: Edward Elgar.
Chicago
Wiebe Keith, . 2003. Land quality, agricultural productivity, and food security : Biophysical processes and economic choices at local, regional and global levels. UK: Edward Elgar.
Harvard
Wiebe K., . (2003). Land quality, agricultural productivity, and food security : Biophysical processes and economic choices at local, regional and global levels. UK: Edward Elgar.
MLA
Wiebe Keith, . Land quality, agricultural productivity, and food security : Biophysical processes and economic choices at local, regional and global levels. UK: Edward Elgar. 2003.