APA Style
Johnsen,T.N and Elson,J.W. (1979).
Sixty Years of Change on a Central Arizona Grassland-Juniper Woodland Ecotone (USDA) .
Oakland:
U.S. Department of Agriculture.
Chicago Style
Johnsen,T.N and Elson,J.W.
Sixty Years of Change on a Central Arizona Grassland-Juniper Woodland Ecotone (USDA).
Oakland:
U.S. Department of Agriculture,
1979.
.
MLA Style
Johnsen,T.N and Elson,J.W.
Sixty Years of Change on a Central Arizona Grassland-Juniper Woodland Ecotone (USDA).
Oakland:
U.S. Department of Agriculture,
1979.
.
Turabian Style
Johnsen,T.N and Elson,J.W.
Sixty Years of Change on a Central Arizona Grassland-Juniper Woodland Ecotone (USDA).
Oakland:
U.S. Department of Agriculture,
1979.
.